Spinning the model Earth results in different parts experiencing day and night, just like the real Earth. The rotation of Earth on its axis causes this alternation of daylight and darkness. Earth's tilt is vital for the seasons; without it, there would be no significant seasonal changes.
Explanation:If the model Earth is spun, the result would be that some parts of the model Earth will have daytime and some will have night, which corresponds to option D. This is because the Earth rotates on its axis, which means that as it turns, different parts of the Earth's surface move into and out of sunlight. Since the model is acting the same as the real Earth, the side facing the light source (simulating the sun) will experience daytime, while the side opposite to the light source will be in shadow and experience night.
The presence of day and night is due to the 24-hour rotation of the Earth on its axis. This rotation alternately exposes one side to sunlight while the other side faces away and is in darkness. Therefore, a complete turn of the model Earth will simulate the alternation of day and night just as it occurs on our planet.
About the seasons and Earth's tilt, if the Earth's axis were not tilted, seasons as we know them would not exist. The 23.5° tilt is responsible for the seasonal changes. Without the tilt, the entire Earth would experience approximately equal day and night throughout the year, similar to equatorial regions. There would be no significant seasonal variation in temperature or daylight hours, and the concept of summer, autumn, winter, and spring would not apply.
Final answer:
When spinning a model Earth, some parts will have daytime while others will have night, reflecting the rotation of the real Earth. This rotation causes the daily cycle of day and night, and the tilt of Earth's axis leads to the changing seasons.
Explanation:
When a student spins a model Earth to simulate the rotation of the real Earth, different parts of the model Earth will experience daylight or nighttime, just as they do on our planet. This is because Earth rotates on its axis every 24 hours, causing different regions to alternately face towards and away from the Sun. This rotation is responsible for the cycle of day and night. So, for a model Earth acting the same as the real Earth, the correct answer is:
D. Some parts of the model Earth will have daytime and some will have night.
The idea of seasons on Earth occurs due to the 23.5° tilt of Earth's axis. This tilt results in varying angles of sunlight and daylight durations during different times of the year, causing seasons. If Earth's axis were not tilted, we would not experience the pronounced seasonal changes that are currently present at different latitudes.
Which of these events occurs during the normal function of ATP in the cell?
ATP stores and releases energy during the normal function in the cell. It is used for various cellular tasks such as growth, movement, and active transport. ATP regeneration occurs through substrate-level phosphorylation and oxidative phosphorylation processes.
Explanation:During the normal function of ATP in the cell, energy is stored and released. ATP molecules store energy through the synthesis process and then release a controlled amount of energy during the breakdown process. This energy is used by the cell to perform various tasks such as growth, movement, and active transport.
For example, ATP is required to move sodium ions against their concentration gradient outside the cell. ATP is also required for the entry of potassium ions inside the cell.
The two processes involved in ATP regeneration are substrate-level phosphorylation and oxidative phosphorylation. Substrate-level phosphorylation occurs directly in metabolic reactions, while oxidative phosphorylation takes place in mitochondria and involves a more complex process called chemiosmosis.
Learn more about ATP and its function in the cell here:https://brainly.com/question/14335285
#SPJ12
The correct event that occurs during the normal function of ATP in the cell is the chemical bond breaks between the second and third phosphate groups. ATP is a molecule of adenosine triphosphate that consists of an adenine unit, a ribose unit, and three phosphate groups. The high-energy bond between the second and third phosphate groups is broken to release energy for cellular processes.
therefore correct option (d).
Explanation:The correct event that occurs during the normal function of ATP in the cell is d. the chemical bond breaks between the second and third phosphate groups. ATP is a molecule of adenosine triphosphate that consists of an adenine unit, a ribose unit, and three phosphate groups. The high-energy bond between the second and third phosphate groups is broken to release energy for cellular processes.
Learn more about ATP function in the cell here:https://brainly.com/question/33509553
#SPJ6
therefore question given below:
Which of these events occurs during the normal function of atp in the cell? a. a chemical bond forms between the adenine unit and the third phosphate group. b. the chemical bond breaks between the adenine and ribose units. c. the chemical bond breaks between the ribose unit and the first phosphate group. d. the chemical bond breaks between the second and third phosphate groups.v
Correctly label the following anatomical parts of osseous tissue.
The correctly labelled anatomical parts of osseous tissue are mentioned below.
What is an osseous tissue?Osseous tissue, also known as bone tissue, is a type of connective tissue that forms the skeletal system of the body. It is a hard and rigid tissue that provides structural support and protection to the body's internal organs, as well as serving as a site for muscle attachment and bone marrow production.
Numbering is from top to bottom in the blank boxes:
1- Spicules: Tiny, bony projections that resemble needles that are frequently seen in spongy bone.
2- Trabeculae: In spongy bone, these tiny bony plates or struts, which provide bone its structural support, are present.
3- Spongy bone: It has a spongy appearance, which are characterized by trabaculae and spicules.
4- Central canal: It is a tiny canal that is found at the center of the bone
5- Lacuna: These are the spaces in the bone tissue.
6- Collagen fibers: These provide strength and elasticity to the bone.
7- Nerve (right box): It is responsible for transmitting electrical signals.
Learn more about osseous tissue, here:
https://brainly.com/question/29674298
#SPJ5
The question is incomplete, but most probably the complete question is,
Correctly label the following anatomical parts of osseous tissue.
Osseous tissue is connective tissue in the skeleton that includes long, short, flat, and irregular bones. Compact bone, with osteons, forms the outer layer, while spongy bone features trabeculae within.
Osseous tissue, also known as bone tissue, is a type of connective tissue that comprises specialized cells, mineral salts, and collagen fibers. It provides structural support and protection to the body. The human skeleton includes various types of bones such as long bones, short bones, flat bones, and irregular bones. Compact bone tissue, made up of osteons, forms the dense external layer of bones, whereas spongy bone tissue consists of a web-like structure called trabeculae and is found inside the bones.
To correctly label the anatomical parts of osseous tissue, one might start by obtaining a cross-section of a bone, such as the femur, either intact or cut along its longitudinal axis. Key structures to identify and label could include osteons, the central canal, lamellae, and osteocytes in lacunae. Additionally, for the human skeleton, it’s critical to distinguish between the axial skeleton, which includes the skull, vertebral column, and rib cage, and the appendicular skeleton, which comprises the limbs and girdles.
The interaction of substances A and B is an example of
Answer:
how can we know the substance if u didn't attach any diagram to this question
Final answer:
The interaction of substances A and B in chemistry typically refers to a combination reaction where they form a single product, C. This process can include intermediate steps and is influenced by thermodynamic factors such as solubility, temperature, pressure, and concentration.
Explanation:
The interaction of substances A and B could be exemplified in various scenarios within chemistry. Combination reactions occur when two or more reactants interact to form a single substance, such as A and B forming C. In another context, A and B could represent molecules such as an enzyme and its substrate or a ligand and receptor, which bind together to form a specific product. Sometimes, these reactions involve intermediate steps or may involve competing pathways, where a reactant like A could react with B or C resulting in different products.
It is also important to consider thermodynamic factors when mixing substances like A and B that aren't very soluble in each other. Their solubility or lack thereof can influence the direction and extent of their chemical interaction. Factors like temperature, pressure, and concentration, as pointed out in the various examples provided, play critical roles in determining the rates and outcomes of the reactions.
Which organism in the food web below is found in the first trophic level of the
ecosystem?
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig
fungus
fruit bat
A. Fungus
B. Fruit bat
C. Strangler fig
D. Sloth
Answer:
C. Strangler fig
Explanation:
the first trohphic level contains only the produsers of the ecosystem the prdoduser in the question is the strangler fig making the answer C
Among the options given, the strangler fig is found in the first trophic level of the ecosystem. It is a primary producer that utilizes photosynthesis to manufacture its own food. Other animals in the ecosystem feed on it directly or indirectly.
Explanation:In a food web, the organism found at the first trophic level is always a primary producer. This means it is an organism that can manufacture its own food usually through the process of photosynthesis. In this particular scenario, among the options given, the primary producer is the strangler fig. The strangler fig utilizes sunlight to create its own food in the form of glucose using the process of photosynthesis, thereby positioning it at the first trophic level of the ecosystem. Other animals like beetles, sloths, and fruit bats, etc. feed on the strangler fig directly or indirectly, making it a vital part of the food web.
Learn more about Trophic Levels here:https://brainly.com/question/30691761
#SPJ2
Which trait is heterozygous?
A- Aa
B- aa
C- AA
Answer:
A.) Aa
Explanation:
A heterozygous gene is known as having two different alleles of a particular gene or genes. The correct answer is option A because both letters are different, versus the other two options where both are capital or lowercase.
What is the structure and function of the cell membrane? Why is the cell membrane so important?
Answer:
The cell membrane is a multifaceted membrane that envelopes a cell's cytoplasm. It protects the integrity of the cell along with supporting the cell and helping to maintain the cell's shape. Proteins and lipids are the major components of the cell membrane.
Answer:
The cell membrane has two functions: first is to keep the constituents of the cell in and unwanted substances out. Its second function is to be a gate allowing the transport of essential nutrients into the cell and movement from the cell of waste products. It's important because it protects the cell.
An ecosystem cannot repair itself
after a volcanic eruption
after a flood
after a tornado
after a houseing development is built
Is the EARTH flat or round? really deep question don't make fun of it cuz there are too many contradiction
Answer:
Round
Explanation:
The Earth is round ,even though there are many contradictions. The Earth spins on an axis, which is why there are different time zones all around the world. If the world was flat, then an Earth's core wouldn't exist and also the laws of gravity would not make since due to the Earth being considered flat. People would never know if they met the end of the Earth, or if they walked off the face of the Earth. Also note that if the Earth was flat then our Solar System would have to be flat since it involves the planets to revolve around the Sun.
Answer:
The Earth is technically an ellipsoid.
Explanation:
While the Earth appears to be round when viewed from the vantage point of space, it is actually closer to an ellipsoid. However, even an ellipsoid does not adequately describe the Earth’s unique and ever-changing shape.("Is the Earth round?") If the Earth were flat, then many of the things we know and love today would be gone. The tides, the moon, the atmosphere, etc.
what chemical caused the decline of the eagle population
The chemical that caused the decline of the eagle population is dichloro-diphenyl-trichloroethane
What is dichloro-diphenyl-trichloroethane?Most biologists now agree that DDT (or dichloro-diphenyl-trichloroethane) contributed to the fall of bald eagle and other bird-of-prey species (such as ospreys and brown pelicans). In agriculture, dichlorodiphenyltrichloroethane, or DDT, is an insecticide. In 1972, the United States outlawed the use of DDT. DDT is still used in several non-US nations to control malaria-transmitting mosquitoes.
The first action taken by the new EPA was to outlaw DDT because of worries about potential health risks to humans as well as environmental damage. Additionally, data connected DDT to dramatic drops in bald eagle populations as a result of thinner eggshells.
Learn more about population at
https://brainly.com/question/25630111
#SPJ3
What is the best index fossil? (I don't need a full CERC.)
Answer:
i dont know um maybe 2
Explanation:
Which statement best explains the impact of favorable oceanic conditions on the Geosphere?
A Hurricanes change the shape of the coastline.
B Intertidal areas support many types of life.
C Ocean waves add more sand to beaches.
D Pollution moves onshore from oceans.
Final answer:
The statement that best explains the impact of favorable oceanic conditions on the Geosphere is that intertidal areas support a diverse range of life due to their variable environment and adaptations of organisms to both terrestrial and marine conditions.
Explanation:
Which statement best explains the impact of favorable oceanic conditions on the Geosphere? The most fitting answer is that intertidal areas support many types of life. The intertidal zone, the area between high and low tide, is a vital part of the marine biome where organisms are repeatedly exposed to varying conditions such as air, sunlight, and waves. These life forms are highly adapted to this environment, being able to withstand dry periods and the physical impact of waves. Moreover, the movement of the waves contributes to the shifting of sand and the shape of the coastline, thereby supporting a unique and diverse ecosystem.
Additionally, the neritic zone is another part of the ocean that extends from the intertidal zone to the depths of about 200 meters, where sunlight still penetrates. This zone is also rich in biodiversity, with conditions suitable for photosynthesis, and acts as the base for most of the world's fisheries.
Ocean waves transporting sand to beaches best exemplifies the impact of favorable oceanic conditions on the geosphere.
A) Hurricanes change the shape of the coastline.
- This statement refers to the hydrosphere, not the geosphere. Hurricanes can indeed cause erosion and alter coastlines, but they primarily affect the interaction between the atmosphere and the hydrosphere.
B) Intertidal areas support many types of life.
- This statement also primarily concerns the hydrosphere, specifically the coastal zones where the ocean meets the land. Intertidal areas support diverse ecosystems, but they are not directly related to the geosphere.
C) Ocean waves add more sand to beaches.
- This statement involves the interaction between the hydrosphere and the geosphere. Ocean waves can transport sediments, including sand, along coastlines, contributing to beach formation and changes in coastal geomorphology. This option is most closely related to the impact of oceanic conditions on the geosphere.
D) Pollution moves onshore from oceans.
- While pollution can indeed be carried by ocean currents and impact coastal areas, this statement primarily relates to the interaction between the hydrosphere and the biosphere or anthroposphere, rather than the geosphere.
Therefore, option C, "Ocean waves add more sand to beaches," best explains the impact of favorable oceanic conditions on the geosphere.
Which of the following is true about plants and cellular energy?
A. Plants can use light energy to produce food molecules or to obtain cellular energy from the bonds of these food
molecules during photosynthesis.
B. Plants can use light energy to produce food molecules or to obtain cellular energy from the bonds of these food
molecules during cellular respiration.
C. Plants use light energy to produce food molecules during cellular respiration and to obtain cellular energy from the bonds
of these food molecules during photosynthesis.
D. Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of
these food molecules during cellular respiration.
Answer:
The correct statement is
Option D. Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
Explanation:
Photosynthesis is food producing process in which food is produced by plants in the presence of sunlight while respiration is energy releasing process in which energy is released due to the breakdown of glucose molecules.
Answer: D). Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of
these food molecules during cellular respiration.
Explanation: During photosynthesis, plants use light energy absorbed from the sun to manufacture organic food substances such as glucose in the presence of carbon dioxide and water to give oxygen as the byproducts but during cellular respiration, glucose produced in photosynthesis is broken down in the presence of oxygen (a byproduct of photosynthesis) to generate energy in form of ATP with the release of carbon dioxide and water as byproducts.
Equation for photosynthesis is 6CO2 + 6H2O + solar energy --> C6H12O6 + 6O2
Equation for cellular respiration is C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP
What type of UV light is used in tanning beds, and
why is it so dangerous?
Answer:
UVA light is dangerous because it penetrates multiple layers of the skin. Some tanning beds also emit UVB light. Exposure to UV light in tanning beds can age skin and greatly increase the risk of skin cancer.
Explanation:
Answer:
Tanning beds use UVA light.
The concentration of UVA rays from tanning beds is greater than from the Sun.
UVA light is dangerous because it penetrates multiple layers of the skin.
Some tanning beds also emit UVB light.
Exposure to UV light in tanning beds can age skin and greatly increase the risk of skin cancer.
Explanation:
a carbon ring structure that contains one or more atoms of nitrogen
Final answer:
A carbon ring structure with nitrogen atoms is known as a nitrogenous base, critical in DNA and RNA as components called purines and pyrimidines, which include bases such as adenine, guanine, cytosine, thymine, and uracil.
Explanation:
A carbon ring structure that contains one or more atoms of nitrogen is typically known as a nitrogenous base, which is an essential component of nucleic acids such as DNA and RNA. In terms of chemistry, these structures are composed of carbon and nitrogen atoms arranged in a ring, with the ability to have various functional groups attached. Two prime examples of nitrogenous bases are purines and pyrimidines, which include bases like adenine (A), guanine (G), cytosine (C), thymine (T), and uracil (U). Both purines and pyrimidines are critical for the structure of nucleic acids, with purines possessing a double-ring structure that includes a six-carbon ring fused to a five-carbon ring. The nucleobase is attached to the 1' carbon atom of a pentose sugar, and this combined with a phosphate group, forms a nucleotide.
which best describes a protein
Answer: C: A chain of amino acids
Explanation:
The statement which best describes a protein is that it's a chain of amino acids.
What is a protein?In Science, a protein can be defined as a hydrophilic, macromolecule (polymer) which is typically formed due to the union of a chain of amino acids.
This ultimately implies that, the statement which best describes a protein is that it's a chain of amino acids, and it consist of the following chemical compounds:
An acidic carboxyl group (COOH).A basic amino group (NH₂).A unique side chain group.Read more on protein here: https://brainly.com/question/19145247
#SPJ2
In this lab, you used a dichotomous key to identify organisms. Why would this skill be valuable to you? Check all possible reasons below.
It helps you classify organisms.
It helps you identify ecosystems.
It helps you study and appreciate biodiversity.
It helps you analyze an organism’s traits.
It helps you understand how organisms interact.
Using a dichotomous key to identify organisms is valuable for classifying organisms, studying and appreciating biodiversity, and analyzing an organism's traits.
Explanation:A skill in using a dichotomous key to identify organisms is valuable for several reasons:
It helps you classify organisms: A dichotomous key allows you to organize and categorize different organisms based on their characteristics. This classification is important for understanding the relationships between different species.It helps you study and appreciate biodiversity: By using a dichotomous key, you can identify and appreciate the wide variety of organisms present in different ecosystems or samples. This understanding of biodiversity is crucial for conservation efforts and understanding the complexity of life on Earth.It helps you analyze an organism’s traits: A dichotomous key requires you to observe and analyze specific traits of an organism in order to identify it. This skill of analyzing traits is important in biology and other scientific fields.Using a dichotomous key to identify organisms is valuable because it helps classify organisms and analyze their traits.
A dichotomous key is a tool used in biology to classify and identify organisms based on their observable characteristics. By following a series of dichotomous choices, such as the presence or absence of specific features, one can narrow down the possibilities and accurately identify the organism.
This skill is valuable for scientists, students, and nature enthusiasts as it allows for the systematic classification of organisms, aiding in the study and appreciation of biodiversity.
Additionally, analyzing an organism's traits through a dichotomous key provides insights into its evolutionary relationships and ecological roles, contributing to a better understanding of how organisms interact within ecosystems.
what structures are formed from rapidly cooling lava in the ocean?
Pillow lavas are sack-like structures formed from rapidly cooling lava in the ocean.
What is cooling lava in the ocean?Pillow lavas, sack-like structures formed when flows of basaltic lava are extruded into the ocean, a deep lake, or a water-filled tunnel within the ice, are seen on the steep slopes of volcanoes.
Pillow basalt commonly develops at mid-ocean ridge volcanoes or oceanic hot-spot volcanoes, like those that created the Hawaiian Islands. The most prevalent rock in the crust of the Earth is basalt, which also serves as the crust of all ocean basins.
Therefore, Pillow lavas structures formed when flows of basaltic lava in the ocean, which develop at mid-ocean ridge volcanoes.
Learn more about lava, here:
https://brainly.com/question/28544507
#SPJ2
People infected with the human immunodeficiency virus (HIV) have an increased
risk of dying from secondary infections. Which of these best explains how HIV
increases the danger of secondary infection?
A HIV produces antigens that damage red blood cells
B HIV adds genetic material from harmful microbes.
C HIV destroys helper T cells
D HIV consumes beneficial microbes in the body
how is nitrogen obtained by animals
Answer
Animal obtain nitrogen from
Plant and microbes which has ability to fix nitrogen
Geographic range for amoeba?
9. Surtsey is an island located south of Iceland that was formed by a volcanic eruption. Surtsey first
appeared in the 1960s. Ecologists documented the stages of succession as found below:
A. Dwarf willow trees begin to grow on the island.
B. Mosses, lichens, and plants that are adapted to be dispersed by the wind or sea and able to grow in
the sand appear on the island.
C. Vascular plants included sea lyme grass and oyster plants appear.
D. The lava and sand formation that resulted from the eruption are barren with few nutrients.
Answer:
its d
Explanation:
Ecologists documented the stages of succession. The correct order is D-B-C-A. The lava and sand formations that resulted from the eruption are barren with few nutrients. This is the initial stage of succession, and it is characterized by the absence of life.
The next stage of succession is the establishment of pioneer species. These are species that are able to live in harsh conditions and that can help to improve the soil quality. Pioneer species on Surtsey included mosses, lichens, and plants that are adapted to be dispersed by the wind or sea and able to grow in the sand.
As the soil quality improves, other species, such as vascular plants, can begin to grow. Vascular plants include sea lyme grass and oyster plants. These plants are able to further improve the soil quality, and they can also provide food and shelter for other organisms.
The final stage of succession is the establishment of a climax community. A climax community is a stable community that is in equilibrium with its environment. The climax community on Surtsey is likely to be a forest, but it will take many years for this community to develop.
To know more about succession:
https://brainly.com/question/1291604
#SPJ6
What chemical does the liver make?what does it do?
Answer:
The liver continuously filters blood that circulates through the body, converting nutrients and drugs absorbed from the digestive tract into ready-to-use chemicals. The liver performs many other important functions, such as removing toxins and other chemical waste products from the blood and readying them for excretion
Explanation:
*BRAINLIEST*The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as: 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.
Answer:
I would write "terrestrial/lives on land during all life stages" between the frog and pigeon branches.
Explanation:
Jaw evolution has started with fish, so i'd place that before the perch, evolution of four limbs is next and I would plate it between the perch and the frog. Evolution of an egg has ensured that organisms remain terrestrial during all stages of life and don't need to rely on water to lay their eggs. So I would place that between the frog and the pigeon. True mammary glands and true hair, as we know it formed on mammals so i'd place that between the pigeon and the rats (although synapsids evolved similar structures long before birds even existed). And lastly, I would place "walking on two legs" between rats and human branches. Because our ancestors evolved bipedalism relatively late.
Explanation: 3 because a pigeon, a rat, and a human "lives on land during all life stages".
How deep of a diffusion does is meet to needs of living cells?
Diffusion is the net movement of anything (for example, atom, ions, molecules) from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration.
The concept of diffusion is widely used in many fields, including physics (particle diffusion), chemistry, biology, sociology, economics, and finance (diffusion of people, ideas, and price values). The central idea of diffusion, however, is common to all of these: an object (for example, atom, idea, etc.) undergoing diffusion spreads out from a point or location at which there is a higher concentration of that object.
A gradient is the change in the value of a quantity, for example, concentration, pressure, or temperature with the change in another variable, usually distance. A change in concentration over a distance is called a concentration gradient, a change in pressure over a distance is called a pressure gradient, and a change in temperature over a distance is called a temperature gradient.
The word diffusion derives from the Latin word, diffundere, which means "to spread out."
A distinguishing feature of diffusion is that it depends on particle random walk, and results in mixing or mass transport without requiring directed bulk motion. Bulk motion, or bulk flow, is the characteristic of advection.[1] The term convection is used to describe the combination of both transport phenomena.
If a diffusion process can be described by Fick's laws, it's called a normal diffusion (or Fickian diffusion); Otherwise, it's called an anomalous diffusion (or non-Fickian diffusion).
When can exponential growth happen?
A. When carrying capacity is reached
B. When there are limited resources
C. When there is no competition
D. When the death rate is high
SUB
Answer:
c
Explanation:
there can't be growth if there are not enough resources
Answer:
C. When there is no competition.
& (If you have different options)
When there are unlimited resources.
Explanation:
correct for those option in the biology ap ex quiz/test as of late May 2021
Identifying the Contribution of Scientists
Determine which scientist made each contribution.
was the first to use word "cell"
Robert Hooke
Anton van Leeuwenhoek
observed "animalcules"
observed cork cells
used polished lens
) Intro
✓ Done
Robert Hooke observed cork cells first used the word "cell".
Anton van Leeuwenhoek used polished lens observed "animalcules"
Explanation:
Anton van Leeuwenhoek is known as father of microbiology. He is credited to improve the quality of lens in microscope. His first observation of organisms called animalcules.
He is credited to have build microscope that could get magnified by 200 times. He used word animalcules for small organisms from pond water when first observed in microscope. He discovered protozoa and named it animalcules".
Robert Hooke is famed for discovering cell from a cork of plant. He observed a compartment or honey comb like divisions when observed these cork cells under the microscope and named it cell. He was only able to see the cell wall as the cork cells are dead cells.
Robert Hooke and Anton van Leeuwenhoek made significant contributions to cell biology by observing and describing cells under a microscope.
Explanation:The scientist who was the first to use the word "cell" was Robert Hooke. He observed cork cells under a microscope and described them as cellulae, meaning small rooms or chambers. Another scientist, Anton van Leeuwenhoek, observed "animalcules", or microorganisms, using a microscope. Both scientists played important roles in the discovery and understanding of cells.
Additionally, Robert Hooke used a polished lens to magnify and observe microorganisms and cells. This led to the development of the microscope and further advancements in cell biology.
Learn more about Cell Biology here:https://brainly.com/question/32100370
#SPJ3
10. How should your microscope be stored when not in use?
Answer:
Always cover the microscope with the supplied dust cover when not in use.
Store in a dry place.
In humid or moist environments, it is advisable to store the microscope in a waterproof container with a drying agent.
Do not touch the optical lens with bare fingers.
Do not store the microscope in direct sunlight.
Explanation:
Final answer:
A microscope should be stored properly when not in use to ensure its longevity and prevent damage. Follow these steps: switch off the microscope, clean the lenses, wrap the cord and cover it, and store it in a safe place.
Explanation:
When not in use, a microscope should be stored properly to ensure its longevity and prevent damage. Here are the steps to follow:
Switch off the microscope: Before storing the microscope, make sure to switch it off to conserve energy and prevent any accidents.Clean the lenses: Use lens paper or Kimwipes to clean all the lenses before putting the microscope away. This helps remove any dirt or smudges that may affect the image quality.Wrap the cord and cover: Gently wrap the cord around the base of the microscope and cover it with its plastic cover. This prevents dust and other debris from entering the microscope.Store in a safe place: Return the microscope to its designated storage place, making sure that the ocular lenses are facing inwards to avoid any damage.Explain how the random alignment of homologous chromosomes during metaphase I
contributes to variation in gametes produced by meiosis.
Long answer+ good explanation and you WILL get the the brainless answer mark.
The randomness in the alignment of recombined chromosomes at the metaphase plate, coupled with the crossing over events between nonsister chromatids, are responsible for much of the genetic variation in the offspring. To clarify this further, remember that the homologous chromosomes of a sexually reproducing organism are originally inherited as two separate sets, one from each parent. Using humans as an example, one set of 23 chromosomes is present in the egg donated by the mother. The father provides the other set of 23 chromosomes in the sperm that fertilizes the egg. Every cell of the multicellular offspring has copies of the original two sets of homologous chromosomes. In prophase I of meiosis, the homologous chromosomes form the tetrads. In metaphase I, these pairs line up at the midway point between the two poles of the cell to form the metaphase plate. Because there is an equal chance that a microtubule fiber will encounter a maternally or paternally inherited chromosome, the arrangement of the tetrads at the metaphase plate is random. Thus, any maternally inherited chromosome may face either pole. Likewise, any paternally inherited chromosome may also face either pole. The orientation of each tetrad is independent of the orientation of the other 22 tetrads.
Explanation:
The assortment of homologous chromosomes during meiosis is random and generates genetic variation, the raw material for evolution.
During metaphase I of meiosis, homologous chromosomes are lined up at the equator plate of the cell in order to be separated (assorted) in anaphase I.
The separation of homologous chromosomes during meiosis I is random, thereby daughter cells receive different gene combinations from an original parent cell.
Subsequently, haploid cells obtained from two successive meiotic divisions fuse during fecundation to form a diploid (2n) zygote.
Moreover, during prophase I non-sister chromatids interchange genetic material by a process known as recombination, thereby this genetic process also increases genetic variation in daughter cells.
In conclusion, the assortment of homologous chromosomes during meiosis is random and generates genetic variation.
Learn more in:
https://brainly.com/question/10118000?referrer=searchResults
Which words identify the scientific parts of a wave
Answer:
Crest
Trough
Rarefaction
Compression
Amplitude
I think this may help if this is what you were looking for as an answer...
This cell is a prokaryote. Which evidence could be used to support this classification
Answer:
circular DNA
Explanation:
usatestprep
A prokaryotic cell can be identified by three main characteristics: the absence of a nucleus, the lack of membrane-bound organelles, and their generally smaller size compared to eukaryotic cells.
Explanation:A prokaryote is a type of cell lacking a true nucleus and membrane-bound organelles. This is the most basic and ancient type of cell. There are several pieces of evidence that could support the classification of a cell as a prokaryote.
Firstly, one of the clearest indicators that a cell is a prokaryote is the absence of a nucleus. Prokaryotes have a nucleoid, a region in the cell where the DNA material is located, but it is not enclosed by a nuclear membrane, unlike eukaryotic cells. Secondly, prokaryotic cells lack other types of membrane-bound organelles such as mitochondria, Golgi bodies, and endoplasmic reticulum. They have ribosomes for protein synthesis but these ribosomes are smaller than those found in eukaryotes. Third, the size of the cell can be another indication. Prokaryotes are generally smaller than eukaryotes, often being only 1-10 micrometers in diameter. Learn more about Prokaryote here:https://brainly.com/question/33439033
#SPJ2