Answer:
There's lots
Explanation:
Bones have many functions. They support the body structurally, protect our vital organs, and allow us to move. Also, they provide an environment for bone marrow, where the blood cells are created, and they act as a storage area for minerals, particularly calcium.
Hello There!
I broke this question down into 3 main functions of bones and will briefly explain each one.
"SUPPORT" Almost like the steel framework of a building, bones provide rigidity. This gives the body shape and supports the weight of muscles and organs. Without this, the body would collapse on itself.
"MOVEMENT" There are 3 major systems involved with the mechanics of movement. These are the "Nervous System" "Muscular System" And "Skeletal System" The nervous system send electrical impulses that activate our muscles.
"PROTECTION" Bones protect soft inner body organs from getting damaged. An example is the scull protects the brain from getting damaged.
Please help!!!!!!! (Question in photo) I’m desperate!!!
Answer:1st one
Explanation:
Mendel crossed tall pea plants with short pea plants. The offspring were all tall plants.
Answer:
First one is: Short and the second one is: tall.
Explanation:
Got this right. :D
Hope this helps! :)
Helppppppppppppppppppppppppp!!!!?!?!?!?!!!
Answer:
J.J Thomas - B
John Dalton - A
Ernest Rutherford - D
James Chadwick - C
Which of the following is the earliest era of Earth's geologic time scale? Cenozoic
Mesozoic
Precambrian
Paleozoic
Answer: Paleozoic
Explanation:
Paleozoic is the earliest era
What is a chromosome
Answer:
the correct answer is d my good man
Explanation:
Answer:
D. A strand of DNA
Explanation:
During times of stress, Yanira notices that her heart pounds a little faster than normal. What part of the brain is
responsible for her increased heart rate?
Brain stem
Cerebellum
Frontal lobe.
Occipital lobe
Answer:
Cerebellum
Explanation:
The cerebellum is a region of the brain whose main function is to integrate the sensory and motor pathways. There is a large number of nerve bundles that connect the cerebellum with other brain structures and with the spinal cord. The cerebellum integrates all the information received to specify and control the orders that the cerebral cortex sends to the musculoskeletal system through the motor pathways. It is the regulator of physiological tremor.
which microscope creates a two dimensional image
A compound microscope creates a two-dimensional image. It's constructed from two convex lenses, with the first serving as the eyepiece and the second as the objective lens. It does not construct a three-dimensional image like confocal microscopes.
Explanation:.As the light travels through these lenses, the image is maximally focused at a single distance from the observer creating a two-dimensional image. A compound microscope provides a magnified and clear view of tissue structure as well as the anatomy of the whole organism, but unlike other forms of microscopy, does not construct a three-dimensional image by scanning multiple z-planes successively like the confocal microscope.
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Final answer:
A compound microscope typically creates a two-dimensional image through the use of convex lenses. Confocal microscopes enhance this capability, allowing for the capture of high-resolution two-dimensional images at different depths that are reconstructed into three-dimensional images using computer software.
Explanation:
The type of microscope that creates a two-dimensional image is a standard compound microscope, which generally comprises two sets of convex lenses: the eyepiece and the objective lens. However, when it comes to sophisticated microscopy techniques capable of capturing higher resolution images, confocal microscopy enters the picture. Despite its capability of producing numerous two-dimensional high-resolution images at various depths, a confocal microscope is also able to reconstruct these images into a three-dimensional image with the help of specialized software. The confocal microscope makes use of a laser to scan the specimen at multiple z-planes, using a pinhole to eliminate out-of-focus light, hence significantly enhancing images of thicker specimens. Contrastingly, the two-photon microscope represents a more advanced form of imaging, capable of penetrating deeper into thick specimens and is highly suitable for live cell imaging in intact tissues.
In what way are cities microclimates?
Hello There!
An "Urban Microclimate" is the climate of a smaller area in an urban envioment, which may be different to that of another section of the same urban environment.
Cities are microclimates because cities are warmer than the areas around them.
Answer: Micro-climate refers to the small scale climatic condition prevailing in a small area.
Micro-climate in cities differs from place to place depending upon the amount of solar radiations absorbed in that area, amount of precipitation, moisture content, overall surrounding temperature and air pressure.
Most of the cities micro-climates are generally warmer because of its high absorption of solar radiation, lack of spaces between the houses and building and high emission of gases, creating pollution.
How do organ systems work together to deliver nutrients from food throughout the body?
Answer: The digestive system breaks down food and the circulatory system transports nutrients to cells. Hope this helps.
Explanation:
What is an outcome of gene regulation
A. every cell produces all types of proteins
B. each cell is able to produce only one protein
C. each cell produces only the proteins it needs
D. each cell contains the genes for only one protein
Gene regulation results in each cell producing only the proteins it requires. It allows a cell to express or suppress genes as needed, creating differences between cell types.
Explanation:The outcome of gene regulation is that each cell produces only the proteins it needs (option C). In other words, gene regulation allows a cell to express or suppress gene information as necessary, thus helping it respond appropriately to its changing needs and the conditions around it. This is why, for instance, a liver cell differs from a muscle cell, even though they contain the same genetic information. The liver cell will only produce proteins necessary for its functions whilst suppressing the genes required for muscle functions, and vice versa.
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Convert 9.75 millimeters to centimeters.
centimeters
Answer:
.975
Explanation:
1 millimeter is equal to .1 cm
so divide 9.75 by 10
Which of these organisms have the greatest amount of cell specialized
The answer would be B. Cats.
Cats are the most advanced organisms between the options thus have the greatest amount of cell specialization.
A lone male wolf, who doesn't have a pack, travels the forest. When he reaches a new hill that he hasn't been on before, he spends a large amount of time sniffing the trees and rock outcrops. Finally, he turns and heads back from where he came, recognizing this is the territory of another wolf. What's most likely responsible for communicating this information to the wolf?
A. The tracks of other wolves on the hill
B. Pheromones
C. Markings on the trees
D. Language
Answer:
The correct answer is option B. pheromones.
Explanation:
Pheromones are chemical substances that are released and produced by a different type of animals, into the environment, for marking their territory or affecting behaving of its species.
Wolves communicate by the chemical messages using their sense of smell. Such chemical messages are called pheromones, between different members of the same species.
Thus, the correct answer is option B. pheromones.
Which of the following is true of red blood cells?
A. They have multiple nuclei
B. Once created in bone marrow, they circulate for our lifetime
C. They live for only 120 days
D. They live for only about 20 days
Answer:
C. They live for only 120 days
Explanation:
Red blood cells are small and biconcave cells that are known for their lack of nucleus. (Rules out A) Aside form that, they also lack mitochondria and robsomes. They are created in the bone marrow and they live for about 100 to 120 days (rules out B and D) before macrophages recycle them.
Answer:
C
Explanation:
Why do areas north of the Arctic Circle in the Northeren Hemisphere experience a polar day lasting for several months during the summer
Final answer:
The polar day in the Arctic Circle is due to the tilt of the Earth's axis, causing extended daylight during summer months. Despite sunlight being present 24 hours, temperatures seldom rise above freezing because the sun’s rays hit at a low angle.
Explanation:
Areas north of the Arctic Circle in the Northern Hemisphere experience a phenomenon known as the polar day, which lasts for several months during the summer. The Earth's axis is tilted, meaning that during its orbit, the northern part of the planet is skewed towards the Sun. At the peak of this tilt during the summer solstice, around June 21, regions within the Arctic Circle are exposed to sunlight for 24 hours a day, resulting in continuous daylight.
Despite the constant sunlight, the temperature often does not rise above the freezing point of water. This is because the sunlight arrives at a low angle, skimming across the horizon. The energy is spread over a larger area and must travel through more of the Earth's atmosphere, which scatters and absorbs some of the sun’s warmth, resulting in only moderate temperature increases.
The situation reverses around December 21, the winter solstice, leading to the polar night in the Arctic Circle, where there is no sunlight for 24 hours. Conversely, the Antarctic Circle experiences their midnight sun. This cycle is due to the same axial tilt that causes the polar day. Equinoxes occur when the line of direct sunlight hits the equator, making day and night of equal length, typically around March 20 or 21 and September 22 or 23.
Susan is planting her garden and choosing plants at the local plant nursery. She tells the clerk that she wants to plant perennials in her front garden bed. How often is Susan expecting the plants that she chooses to germinate and flower?
A. Sprout this year and need to be replanted
B. Sprout every year for two years
C. Sprout every year, year after year
D. Grow into larger, permanent trees and shrubs
Answer:
C) Sprout every year, year after year
Explanation:
A perennial plant or simply perennial is a plant that lives more than two years. Some sources cite perennial plants being plants that live more than three years. The term is often used to differentiate a plant from shorter-lived annuals and biennials.
Answer:
The correct answer will be option C (Sprout every year, year after year).
Explanation:
Perennials are the herbaceous plants which live for many years or seasons. These plants die in falling season and then again come back in spring from the roots which were dormant during the winter season.
They have longer life-span and sprout every year like Hibiscus, Lavender, Lilies and Rose Bushes.
Thus, option C (Sprout every year, year after year) is the correct answer.
Why does meiosis produce cells with half the chromosomes?
O
A. Most of the chromosomes are not necessary to keep an organism
alive.
B. A gamete needs only half the number of chromosomes because
two gametes join together.
O
C. It makes the gametes easier to move around in the organism.
O
D. It is faster to produce gametes with fewer chromosomes.
The meiosis produces cells with half the chromosomes A gamete needs only half the number of chromosomes because two gametes join together.
Structure of DNA. Most DNA is found inside the nucleus of a cell, where it forms the chromosomes. Chromosomes have proteins called histones that bind to DNA. DNA has two strands that twist into the shape of a spiral ladder called a helix. DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds called base pairs, which connect the two DNA strands. Genes are short pieces of DNA that carry specific genetic information.
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Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of BLANK 1 . The fossils tell us that polar regions BLANK 2 .
Question 1
A.) carbonization
B.) mineralization
C.) trace fossils
Question 2
A.) had a tropical plant that could grow in ice
B.) might of had a different climate in the past
C.) will have abundant vegetation
Answer:
1 A, 2 B.
Explanation:
1. In carbonization, a thin film of carbon mineral is formed on the fossils, giving them a dark black coloration, which makes us conclude that the fossils observed are an example of carbonization.
2. The presence of tropical swamp plant impressions in polar regions is an indication of a different, likely warmer climate in the past, in the polar regions, because plants commonly grow in similar conditions as their living counterparts and no tropical swamp plants are known that can live in polar regions today. Lichens that live in the tundra are not real plants.
Answer:
Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of trace fossils . The fossils tell us that polar regions had tropical plants that could grow in ice.
Explanation:
hope it helps :)
Select the correct answer.
A man has blood type AB and his wife has blood type B. What are the possible blood types for their child?
A. blood types A and B
B. blood type AB
c. blood types A, B, and AB
Which one is it
Define selective pressure
Answer:
Selective pressure is any phenomena which alters the behavior and fitness of living organisms within a given environment. It is the driving force of evolution and natural selection, and it can be divided into two types of pressure: biotic or abiotic.
Explanation:
A selective pressure is any reason for an organism with a certain phenotype to either have a benefit of survival, or a disadvantage.
Which part of the compound light microscope provides the light source?
Part A
Part B
Part E
Part F
Pretty sure its Part F
From the diagram, the part of the compound light microscope that provides the light source would be the mirror. The correct answer would be the part F.
In a compound light microscope, the light source can be:
the mirror, orthe electric bulbThe mirror works by collecting rays of light from the environment and then transmitting such to the stage through the condenser. The electric bulb generate light rays by itself.
Since the microscope in the diagram has no bulb but a mirror, the only light source remains the mirror.
F - mirrorE - condenserD - stageC - objective lensB - body tubeA- ocularMore on the light microscope can be found here: https://brainly.com/question/13884997
RNAi is a technique that silences genes by targeting them and degrading their mRNA. How can this technique be used in scientific laboratories?
A. RNAi has been used in laboratories to make bacteria more susceptible to antibiotics, but has limited application in eukaryotic cells.
B. RNAi is a powerful tool for degrading mRNA, but because it doesn't degrade other types of RNA, its use is limited.
C. RNAi is observed in nature, but it can't be used in laboratories.
D. RNAi allows scientists to turn off one gene specifically to study its effect
The enzyme DNA polymerase works only in the 5′ to 3′ direction. How does this affect the leading strand and the lagging strand?
The enzyme DNA polymerase works only in the 5′ to 3′ direction. How does this affect the leading strand and the lagging strand?
A. DNA polymerase can work on both the leading and the lagging strand but is much faster on the leading strand.
B. DNA polymerase can use only the leading strand as a template. A different enzyme is used to synthesize DNA on the lagging strand.
C. DNA polymerase can work continuously on the leading strand but works discontinuously on the lagging strand, creating Okazaki fragments.
D. DNA polymerase can work continuously on the leading strand but must flip the lagging strand around before it can work on it.
Refer to the family pedigree shown here. In generation I, one parent is affected by the gene mutation and one parent isn't. In generation II, all three children are affected by the gene mutation. What can you conclude about this gene mutation?
A. All children born in future generations will be affected by this disorder.
B. This gene mutation is a dominant disorder.
C. The generation I mother is a carrier of this gene mutation.
D. This gene mutation is a recessive disorder.
Answer:For 1
Option: D
RNA interference process inhibits expression of gene by degrading mRNA. It is a post transcriptional process occur in eukaryotes. RNA is broken into small pieces( siRNA) , these small RNA activates the ribonuclease. Ribonuclease digests the mRNA which codes for certain protein thus halting translation.
Researchers use this mechanism to learn function of gene. This technique is now used to check gene causing certain disease. Artificial mRNA are also available which can be introduced directly in laboratories.
Explanation:
By destroying mRNA, the RNA interference mechanism prevents the expression of genes, hence question 1- d, for 2- c, and 3- b is the correct options.
What is RNA interference?Eukaryotes undergo this post-transcriptional process, small RNA fragments (siRNA) that have been cut apart from RNA activate the ribonuclease.
Translation is stopped by ribonuclease's digestion of the mRNA that codes for a particular protein.
This technique is used by researchers to understand how genes operate, this method is being employed to identify genes responsible for certain diseases.
Therefore, there are also synthetic mRNA options that may be used right away in lab settings, hence for question 1, d is the correct answer.
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An organ that does not secrete digestive enzymes is the
a. pancreas
b. small intestine
c. esophagus
d. salivary gland
A hope spot is a
A protected marine environment
B type of publicity for a TED prize
C term invented by Jacques Cousteau
D place where drilling for oil is likely to pay off
A hope spot is a protected marine environment that is protected to maintain the ocean living.
What is the hop spot?
A hope spot is a place of an ocean that desires unique safety due to its natural world and full-size underwater habitats.
The institution of islands, taking into consideration extraordinarily wealthy in marine biodiversity, are the primary locations in India to were delivered withinside the listing of fifty global 'hope spots.
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Following photosynthesis, _____ is moved to the roots for storage through the phloem.
Answer:
Sugar
Explanation:
The correct answer is sugar. Following photosynthesis, sugar is stored in the roots through the phloem which is composed of living cells that are in charge of transporting a water solution of sugars.
I hope it helped!
Answer:
The correct answer is sugar.
Explanation:
Plants are the only organisms that can make their own food. This is called photosynthesis. With this process, plants capture the energy of sunlight and transform it into chemical energy, to produce organic matter through inorganic matter.
Photosynthesis is carried out in the green leaves and stems of the plant, in special structures of plant cells: Chloroplasts. These organelles contain chlorophyll, which is used efficiently to start photosynthesis. For photosynthesis to be carried out, the availability of light and the presence of chlorophyll are necessary. The process occurs while the plant receives light. The are two types of phases in this process: The light and dark phase.
The light phase receives this name because all the reactions that occur during it depend on the presence of the light. This is captured by chlorophyll allowing photolysis to be performed, a reaction in which water unfolds into hydrogen and oxygen. As a result of this reaction, oxygen is released into the environment and hydeogen is used in other reactions that occur within the same process.
The dark phase receives this name because the reactions that occur in it do not depend on the light, but this does not mean that it occurs at night. This phase requieres compounds formed during the light phase, in addition to the carbon dioxide that is taken from the environment. The latter is combined with the hydrogen released in photolysis and other compounds to form glucose, a simple carbohydrate.
Temperatures in ponds and lakes vary by season.
Please select the best answer from the choices provided
T
F
Temperature varies seasonally in ponds and lakes. In summer, the temperature can range from 4°C at ground level to 22°C at the top.
In winter, the temperature can be 4 °C below and 0 °C above (ice).
What are the seasons in freshwater?
Freshwater biomes can be found all over the world. You have many seasons. A single pond can be as low as 39 degrees Fahrenheit below and 72 degrees Fahrenheit above during the summer season. The same pond could be 39 degrees Fahrenheit below and 32 degrees Fahrenheit above during the winter season.Learn more about temperature here.
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In human females, the process of cell division, meiosis occurs in cells of the:
Answer:
ovaries
Explanation:
In human females, the process of cell division, meiosis occurs in cells of the ovaries.
The process of meiosis occurs in the sexual organs of sexually producing organisms.
Answer:
Ovaries
Explanation:
In human females, the process of cell division, meiosis occurs in cells of the Ovaries.
This is also called oogenesis.
Study the diagram of a desert food chain .
What would most likely happen if the kangaroo rats were killed off and removed from the food chain ?
The removal of kangaroo rats from a desert food chain could lead to an overabundance of seeds and a decline in predator populations, such as kit foxes, potentially causing a collapse of the entire food web.
If the kangaroo rats were removed from a desert food chain, a ripple effect would take place, which would influence the entire ecosystem. As consumers of seeds, the absence of kangaroo rats could lead to an overabundance of seeds. Without kangaroo rats acting as a food source for their predators, such as kit foxes, these predators might face a decline in population due to a lack of food. This can create an imbalance, potentially leading to the overpopulation of some species while others might diminish or even become extinct. As tertiary consumers lose their prey, they may starve and die, which could even lead to the collapse of the entire food web. Ecosystems are interconnected, so the removal of one species, especially a key species like the kangaroo rat, can have far-reaching consequences.
Question 1 of 10
2 Points
While online last week, you saw the following advertisement:
Shop at Impressive lonics!
The ions in our jewelry will balance your energy
and improve your health Nine out of ten people
report significant improvement in the way they
feel within one week of wearing our jewelry
SALE ENDS SATURDAY!
Which of the following is the best thing to do after reading this
advertisement?
O
A. Send your friends a link to the page so they can buy the jewelry
too.
B. Read the company website to find out more about how the ions
work
O
O
C. Buy the jewelry before the sale ends.
O
D. Look for scientific research about whether these claims are
PREVIOUS
Answer:
D. Look for scientific research about whether these claims are correct or not.
Explanation:
Being a Scientific question, the question should be based more on your ability to find out if the jewelry is made of real material (or the material they claim they used). This can be found by finding their sources of material, and checking professional reviews.
~
The best thing that you do after reading this advertisement is, that look for scientific research about whether these claims are true or not.
What do you mean by Health?Health may be defined as a state of total physical, mental, and social well-being and not simply the absence of disease or infirmity.
After reading an advertisement, strictly do the scientific research and analyze the actual cause of balancing the energy.
It is also to realize that the jewelry is made up of what real materials that impact your health.
After finding all such requirements, it's time to analyze the reviews, comments, and effectiveness with the same procedure.
Therefore, the best thing that you do after reading this advertisement is, that look for scientific research about whether these claims are true or not.
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DNA consists of all of the following except.
A. Deoxyribose
B. Phosphate
C. Ribose
D. Nitrogen Bases
Answer: The answer is B
Answer:
b
Explanation:
my guess is phosphate because there isnt phosphate in dna but there is phosphate group and i know that the other choices are in dna