Meiosis creates haploid gametes.
Haploid means that the cells contain only half of the genetic material in a human cell.
Gametes are cells that are used in reproduction.
Hope this helps!!
Which of the following statements is true?
The Challenger Deep was explored by Picard and Walsh.
Data from Jason-1 will help scientists study deep sea life.
Salinity refers to the amount of salt (NaCl) in the ocean.
All of the above.
None of the above.
its all of the above i think...
Answer:
Actually the correct answer was, "The Challenger Deep was explored by Picard and Walsh."
Explanation:
Hope this helps someone in the future! :)
When one animal looks like another animal to protect itself, this adaptation is called
Answer: I believe that would be camouflage.
Explanation:
Camouflage is a defense mechanisms.
this is called mimicry. mimicry is the imitation or looking like something else like in this case. this is also because mimicry is the act of copying the sounds or behaviour of another person or animal.
name three things that happen within two weeks of fertilization?
Answer:
ovulation, Hormones Rise and Egg Travels to the Fallopian Tube
Explanation:
Answer:
germination and first growth
Which of the following is a heterotroph?
sunflower
potato
butterfly
soybeans
Answer:
Butterfly
Explanation:
a heterotroph is an organism that cannot make its own food, and therefore relies on other organisms for sustenance.
potatoes, sunflowers and soybeans are all plants and make their own food through photosynthesis
(they are called autotrophs)
However a butterfly relies on flowering plants to provide the nectar that it consumes.
if all the flowering plants suddenly died the butterflies would most likely die as well because their food source has been eliminated.
therefore the butterfly is a heterotroph
Which foundational concepts in biology were merged in the modern synthesis?
A. Darwin's theory of evolution and Mendel's ideas of heritability
B. Darwin's theory of evolution and Chargaff's rules of base pairing
C. Darwin's theory of evolution and Watson's and Crick's structure of DNA
D. Darwin's theory of evolution and Hershey's and Chase's proof of DNA as genetic material
Answer:
A. Darwin's theory of evolution and Mendel's ideas of heritability
Explanation:
Modern synthesis is the theory of evolution that combines Darwin's theory of natural selection and principles of Mendelian inheritance. This was done to explain the origin of variations among individuals in the population as proposed by Darwin. Darwin could not explain how variations were created and how these variations were transmitted to future generations. Mendel's laws of inheritance provided an explanation of the basis of the origin of variations and mode of their transmission.
This is how modern synthesis came into existence.
Which of the following is a true statements about viruses?
Viruses have no nucleus.
Viruses are alive.
Viruses have a cell membrane.
All viruses are deadly.
The true statement about viruses is that they have no nucleus. Viruses are acellular entities that require a living host to reproduce and are not considered alive since they cannot maintain homeostasis or reproduce on their own.
The true statement about viruses is that viruses have no nucleus. Unlike living cells, viruses are acellular and do not have a cell membrane, cytoplasm, or ribosomes. They need a living host to reproduce as they cannot replicate outside of a host cell. Not all viruses are deadly, and while some can cause serious illness, many can be relatively harmless or cause only mild diseases.
The viral structure can be simplified as a nucleic acid (either DNA or RNA, but not both) encased in a protein coat known as a capsid, and in some cases, an envelope derived from the host's membrane with embedded glycoproteins that help the virus attach to the host cell. These characteristics make viruses unique entities on the borderline of living and non-living matter.
plants take in the suns energy by absorbing
a. chlorophyll b.
b.chlorophyll a
c.high-energy sugars
d.sunlight
The answer is D. Sunlight
9. Based on the soil texture diagram, what type of soil is 40 percent sand, 15 percent clay, and 45 percent silt?
O A. Silt loam
O B. Loam
C. Sandy clay loam
O D. Sandy loam
Your answer would just be straight Loam
Final answer:
A soil with 40% sand, 15% clay, and 45% silt is classified as silt loam, based on the soil textural triangle. The correct option is A.
Explanation:
Based on the soil texture diagram, a soil that is composed of 40 percent sand, 15 percent clay, and 45 percent silt is best classified as silt loam. This classification is determined using a soil textural triangle, where we trace horizontal, vertical, and diagonal lines based on the percentages of clay, silt, and sand. The point where these lines intersect corresponds to the appropriate soil class. Given the provided texture percentages, they intersect within the range specified for silt loam soils, which typically have more than 50% silt and no more than 25% clay.
Which scale is used to describe the magnitude of an earthquake?
O A Mercalli scale
B. Richter scale
OC. magnitude scale
0
OD seismic scale
Answer:
B. Richter scale.
Explanation:
The Richter scale is the scale used to measure the magnitude of an earthquake. The greater the earthquake, the sharper and longer the lines and the higher the peak and lower the draught. The smaller the earthquake, the more smooth and close to a line it would be.
~
The Richter scale is used to describe the magnitude of an earthquake.
State one way a complete blockage at location X would affect the reproductive process ? Please answer !!
Answer:
There would be no fertilization.
Explanation:
When the fallopian tube is blocked, even after ovulation (an egg released by the ovary), it will be unable to travel down the fallopian tube towards the uterus. This way, even when the sperm swim up to the tube (where fertilization of the egg usually occur) after copulation, it will be unable to meet the egg and fertilize it. There will never be conception as long as there is blockage on location X.
In terms of biomass, deep ocean habitats are similar to _____. rain forests deserts grasslands coral reefs
Answer: deserts
Explanation:
Deep ocean habitats are typically the abyssal floors which consists of very few nutrients and this region receives very low sunlight and even no sunlight this results in scanty growth of plants just like deserts. As the plant growth is scanty the animals and zooplankton population dependent upon plants is also low.
It is Deserts..................................
A student found the following flowchart in a text book. Which chemical reaction best summarizes the matter and energy transfers that occur during the process shown?
Answer:
B
Explanation:
The process shown is cellular respiration
The products of photosynthesis are the inputs of cellular respiration
Therefore sugar and oxygen being converted into ATP for Cellular Respiration makes the answer B
hope that helped
Answer:
B. Sugar + O₂→ ATP + CO₂+ Water
Explanation:
The flowchart given in the question is steps of cellular respiration. It is a process which takes place all living cells. Glycolysis occurs in the cytoplasm whereas, Krebs cycle and electron transport chain occurs in the mitochnodria. In this process the respiratory substrate such as sugrar is oxidised completely in presence of oxygen to produce ATP, carbon dioxide and water.
What are scattered over like pepper over the endoplasmic reticulum
Answer:
Ribosomes
Explanation:
The endoplasmic reticulum is a network of interconnected sacs and tubules distributed throughout the cytosol. There are two types of endoplasmic reticulum: smooth endoplasmic reticulum and rough endoplasmic reticulum. The rough endoplasmic reticulum is the one that has ribosomes studded on its outer surface. The presence of ribosomes gives the rough endoplasmic reticulum a rough appearance.
On the other hand, the smooth endoplasmic reticulum has a smooth outer surface due to the absence of ribosomes on it. The main function of rough endoplasmic reticulum is protein synthesis as ribosomes are the site for protein synthesis. The smooth endoplasmic reticulum is involved in lipid biosynthesis.
What will occur when the carrying capacity for humans is met?
A. Diseases will increase.
B. Natural disasters will increase.
C. The death rate will decrease.
D. The population will increase.
Answer:
A. Diseases will increase
Answer: A. Diseases will increase.
Explanation:
A limiting factor is the one which is potent enough to limit the growth, abundance and distribution of the population of species in an ecosystem. Carrying capacity is the maximum number of the population of species which an ecosystem can support by availing resources. If the population exceeds above the carrying capacity, it starts declining.
According to the situation given, diseases will increase is the correct option. Diseases can be limiting factor for reducing the population of humans in an area. Hence, will maintain the carrying capacity.
how is mitosis different in plants and animals?
A. in animals the dna is one circular chromosome
B. in plants the dna is not duplicated
C in plants a new cell wall forms to split the cell
D in animals there is no g0 phase or g2 phase
Answer: c in plants a new cell wall forms to split the cell
Yes the answer’s C.
so what’s your question?(tell me in comments)
C. In plants, a new cell wall forms to split the cell.
Mitosis is the process of cell division that occurs in both plants and animals, but there are key differences in how the process is completed.
In animals, during the final stages of mitosis (cytokinesis), the cell membrane pinches inwards, forming a cleavage furrow, which eventually splits the cell into two daughter cells. This process is possible because animal cells lack a rigid cell wall, allowing the membrane to easily bend and constrict.
In plants, however, the presence of a rigid cell wall makes it impossible for the cell to constrict in the same manner. Instead, during cytokinesis, plant cells form a cell plate in the center of the dividing cell. This cell plate grows outward, eventually developing into a new cell wall that separates the two daughter cells.
Which step is the same in both forms of fermentation, as well as in cellular respiration?
Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end. Both cellular respiration and fermentation start with glycolysis.
How fermentation, and cellular respiration, similar in some steps?Many different kinds of organisms and cells use fermentation, another anaerobic (non-oxygen-requiring) process for breaking down glucose.
Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end.
An anaerobic metabolic process that begins with the same stage as cellular respiration—the production of pyruvic acid by glycolysis, where net 2 ATP molecules are produced. Pyruvate is converted to lactic acid, ethanol, or other compounds in the following phase.
Therefore, both cellular respiration and fermentation start with glycolysis.
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Blood pressure is the pressure exerted by blood against......
A-kidney// b-artery wall// c-brain //D-stomach
Answer: B artery wall
When does the cell pinch off and divide into two daughter cells in mitosis?
During cytokinesis, cell pinch off and divides into 2 daughter cells in mitosis.
What is cytokinesis?The division of the nucleus occurs after the cytoplasm (cytokinesis) during the cell cycle (karyokinetic).
Different cytokinesis processes take place during cell division in animal and plant cells.
Animal cells undergo cytokinesis by the production of two daughter cells as the parent cell's plasma membrane pinches inward along the equator, whereas plant cells undergo cytokinesis through the formation of a cell plate.
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Consider the phylogenetic tree of Old World primates.
According to the tree, which primates share the most recent common ancestor with humans?
gorillas
chimpanzees
bonobos and chimpanzees
bonobos and gorillas
Answer:
bonobos and chimpanzees
Explanation:
I took the test on edg 2020
According to the tree, bonobos and chimpanzees share the most recent common ancestor with humans.
What is a phylogenetic tree?A phylogenetic tree is a diagram used to represent evolutionary relationships between different genetic lineages.
The phylogenetic tree indicates the ancestry between different taxonomic groups by the relative position among nodes.
In conclusion, according to the tree, bonobos and chimpanzees share the most recent common ancestor with humans.
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What drives the atp synthase reactions that produce atp
Secondary succession would most likely be taking place in a(n)
Answer:
After A Lava Flow Or Flood
Explanation:
Answer: A) abandoned field.
Explanation:
the data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?
Answer: light colored moths were selected for on light colored trees
Brightly colored moths are chosen for light-colored trees
Further explanation
Moths are insects that are closely related to butterflies and both belong to the Lepidoptera Order. The difference between a butterfly and a moth is more than just a taxonomy. Sometimes the names Rhopalocera (butterfly) and Heterocera (moth) are used to formalize their differences.
Familiar Moth Types:
Death's-head Hawkmoth Acherontia sp. Actias luna moth Atlas Attacus atlas The biggest moth in the world Emperor Gum Moth Opodiphthera eucalypti Polyphemus Moth Antheraea polyphemus Peppered moth Biston betularia
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Details
Class: Middle School
Subject: Biology
Keywords: Moths, insects, Order
Brightly colored moths are chosen for light-colored trees.
Moths are insects that are closely related to butterflies and both belong to the Lepidoptera Order. The difference between a butterfly and a moth is more than just a taxonomy. Sometimes the names Rhopalocera (butterfly) and Heterocera (moth) are used to formalize their differences.
Familiar Moth Types:
Death's-head Hawkmoth Acherontia sp.
Actias luna moth
Atlas Attacus atlas The biggest moth in the world
Emperor Gum Moth Opodiphthera eucalypti
Polyphemus Moth Antheraea polyphemus
Peppered moth Biston betularia
What happened to the peppered moths during the Industrial Revolution which process took place?Scientists have discovered the specific mutation that famously turned moths black during the Industrial Revolution. In an iconic evolutionary case study, a black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat.
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Which conclusion about the meaning of Y is correct if the allele combination Yy is for yellow seeds?
a. yellow and dominant
b. green and recessive
c. yellow and recessive
d. green and dominant
Answer:
Yellow and dominant
Explanation:
Since Yy represents yellow seeds, the presence of the dominant allele (Y) indicates that recessive homozygosis (yy) cannot manifest yellow because the Y allele prevents the manifestation of green color.
Therefore it is concluded that the Yy seed carries the recessive gene for green seeds, but does not manifest green color.
The diagram shows some of the steps in the flow of energy through an ecosystem. The arrows represent the transfer of energy. Label each arrow with the type of energy being transferred.
Answer:
Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. At the first trophic level, primary producers (plants, algae, and some bacteria) use solar energy to produce organic plant material through photosynthesis.
Explanation:
Unit 4: Ecosystems // Section 3: Energy Flow Through Ecosystems.
Your question is incomplete. please read below to find the full content.
In the diagram showing a typical food chain in an ecosystem, the arrow that connects the sun to plants represents the flow of radiant energy. The sunlight produces radiant energy, of which producers, such as plants, convert into chemical energy through photosynthesis.
The next arrow linking the plants to the rodent shows the flow of chemical energy in plants to primary consumers, such as rodents, who feed on them.
Also, rodents, when preyed upon by secondary consumers, such as wolfs and owls, pass on the same chemical energy to them. So the arrows connecting the rodent to the owl, and to the wolf both show the transfer of chemical energy from the rodent to the owl and wolf.
The next arrow shows the transfer of thermal energy from the wolf to the environment, as the wolf release heat from the body resulting from the daily functions it performs, and also, thermal energy is released to the surroundings as heat during the decomposition of the body of an animal.
The arrow linking the wolf to the decomposer which breaks down the body and waste of the wolf represents a transfer of chemical energy to the decomposer, as they break chemical bonds to obtain the energy they need to survive and grow.
Please check the attached diagram for the complete question.
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Blue crabs live in water. Ghost crabs live in sand dunes and on beaches. Fiddler crabs live in marshes and mud flats. Is this statement true or false?
These crabs live in different habitats because limiting factors change from ecosystem to ecosystem.
a. true
b. false
Answer: A. true
Explanation: Each crab lives in a different habitat according to the environment in that habitat. If you were to move a Ghost crab to water, where the blue crabs live, it would be easy to see, and would most likely not be able to survive fully submerged in water.
Answer:
A. true
Explanation:
How are sex-linked traits inherited? Alleles are passed from the parents’ sex chromosomes to nonsex chromosomes in the offspring. Alleles are passed from the parents’ nonsex chromosomes to the sex chromosomes in the offspring. Alleles are passed from the parents’ sex chromosomes to the sex chromosomes in the offspring. Alleles are passed from the parents’ nonsex chromosomes to nonsex chromosomes in the offspring.
Answer:
alleles are passed from the parents sex chromosomes
Explanation:
sex linked chromosemes are found in the y and x chromosomes in the reproductive cell i.e the sperm and ovum
The right answer for this question is C - sex-linked traits are inherited through alleles, which are passed from the parents' nonsex chromosomes to the sex chromosomes in the offspring. This means that the child will have a combination of both parents' nonsex chromosomes.
which condition allows liquid water to exist on earth
a. weak salinity
b. strong gravity
c. living things
d. freezing temps
Answer:
d. freezing temps
Explanation:
Freezing temps allows liquid water to exist on earth.
What is a fuel body use for energy
Answer: Carbohydrates like sugar and starch are readily broken down into glucose, which is the body's main energy source. Glucose can be used immediately as fuel or stored as glycogen.
as water is cooled from 4 to 0, its density ____
As water is cooled from 4 to 0, its density "decreases." Density is the amount of substance per a specific volume. So, if the water cools it's density decreases, but as the temperature rises it's density will increase because liquid to a gas and a gas has a high density then a liquid.
Hope this helps.
Which causes a sea breeze
The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and the ocean. At night, the roles reverse. The air over the ocean is now warmer than the air over the land.
hopefully i got this right and also helped