Students are conducting a lab estimating the time it takes for the cell cycle in normal chicken cells. They find that the average time for one complete cell cycle is 22 hours.
What differences would they expect to see in cancerous chicken cells?
A Cancerous chicken cells will spend more time in interphase.
b Cancerous cells will not complete all phases of the cell cycle.
c Cancerous chicken cells will complete mitosis in a shorter amount of time.
d Cancerous chicken cells and normal cells will have the same total time to complete the cell cycle.
Answer:C!
Explanation:
Cancerous chicken cells will complete mitosis in a shorter amount of time.
The difference they would expect to see in cancerous chicken cells is cancerous chicken cells will complete mitosis in a shorter amount of time. The correct option is c.
What are cancerous cells?Cancerous cells are those cells that cause cancer in organisms. These cells are the converted form of normal cells. The normal cells are converted into cancerous cells by the means of mutagens.
The cell cycle is the cycle of the division of a cell. The cell divides itself and forms a new daughter cell. That's how a body increases the older cells to divide and produce new cells. The process is called mitosis.
Now, the normal cells divide at a constant and normal rate that is needed, but the cancerous cells divided abnormally and rapidly which cause tumor in the body.
Thus, the correct option is c. Cancerous chicken cells will complete mitosis in a shorter amount of time.
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6. Which list of characteristics describes organisms classified as animals?
Answer:
Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites
Explanation:
A large manufacturing company releases chemicals into the air every day. The chemicals eventually make their way into local bodies of water, killing many of the organisms that live in these areas.
Which best describes this situation?
A. habitat destruction due to pollution
B. habitat destruction due to poaching
C. pollution due to poaching
D. poaching due to habitat destruction
Answer:
A. Habitat destruction due to pollution
Explanation:
In mice, Gray color is considered to be dominant over white. Show the parent genotypes, the Punnett squares and give the phenotype and genotype ratios of the P1 generation: a homzygous gray mouse and a white mouse, show the F1.
Answer:
See the answer below
Explanation:
Let us assume that the gray color in mice is represented by the G allele and the white color is represented by g allele. For a cross between a homzygous gray mouse and a white mouse:
Genotype of the gray mouse - GG
Genotype of the white mouse - gg
Crossing the two parents
GG x gg
F1 Gg Gg Gg Gg
All (100%) the offspring at the F1 would have the genotype Gg and would be gray in color since G is dominant over g. (See the attached image for the Punnet's square).
PLEASE HELP! Which of the following is true of codominance?
A. One allele is dominant and one allele is recessive
B. The alleles are neither completely dominant nor recessive
C. Both alleles
D. The alleles are both dominant and both get expressed
Answer:
D
Explanation:
The answer is D, A is heterozygous so definitely not it
Which statement below is FALSE about how surface currents affect climate?
a
Cold water currents can absorb heat and produce cooler air temperatures.
b
The temperature of the air above a certain region is what affects the temperature of the ocean's surface currents.
c
The temperature of the water at the surface of the ocean affects the air above it.
d
Warm water currents can heat air and produce warmer air temperatures.
Answer:
B
Explanation:
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Explanation:
Predation plays an important role in the overall health of an ecosystem since it regulates the population of preys as well as maintain the population of higher-level consumers. If predators were eliminated from an ecosystem, it would cause an increase of the population of preys and potentially decrease the population of other organisms on lower trophic levels. An example of such effect can be seen from the population of rabbits and plants supposing that foxes, eagles and snakes are eliminated from the ecosystem. The rabbit population will multiply, causing a decrease in the population of plants such as grass that rabbits feed on.
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How does the molecule marked A enter our body
Answer:
Explanation:
A, breathing. It contains oxygen and that is what we use to breath.
Answer:
eating.
Explanation:
glucose (C6H12O6) is a monosaccharide aka a carbohydrate that we eat.
What is the best way to describe the concept of “homeostasis”.
Crospiere
What can you infer about an organism that lives in the rocky intertidal zone?
O A. They are able to withstand changes in tides.
O B. They are able to withstand changes in salinity.
OC. They are able to withstand changes in water temperature.
OD. They are able to withstand changes in air temperature.
Answer:
D
Explanation:
An organism that lives in the rocky intertidal zone are able to withstand changes in tides, salinity, water temperature and air temperature. So, the correct options are All of the above.
What is Intertidal zone?The intertidal zone is the area where the sea meets the land between high and low tide. It is also known as foreshore. It has a wide variety of habitats with different species of life such as sea stars, sea urchins and many species of coral with regional differences in biodiversity.
The intertidal zone is an ecosystem found along the ocean. In this, innumerable organisms living on the coast are saved from the change between high and low tide.
Challenges which are faces in intertidal zone include:
MoistureWaves SalinityTemperatureThus, an organism that lives in the rocky intertidal zone are able to withstand changes in tides, salinity, water temperature and air temperature. So, the correct options are All of the above.
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Selective breeding can produce plants and animals with
A
desired traits.
B
undesired traits.
C
extra chromosomes.
D
fewer chromosomes.
Answer:
A Desired traits
Explanation:
selective breeding is the breeding animals or plants to get desired traits.
16. The primary function of the cell wall is to
A.support and protect the cell.
B. store DNA.
C. direct the activities of the
cell.
Answer:
A support and protect the cell
A population of rabbits lives on one side of a wide river. Another population of rabbits lives on the opposite side of the river. They cannot cross the river. If speciation occurred as a result of the river, what kind of speciation was this? ___________
Answer:
Allopatric speciation
Explanation:
The kind of speciation that occurs when 2 populations of rabbits separated by water become different species is allopatric speciation.
Allopatric speciation occurs when two populations of the same organisms become physically separated and each population ends up developing unique characteristics that make them distinct species. This is as opposed to sympatric speciation in which a new species just spontaneously emerge from the existing population without any being separated from the population.
Other forms of speciations include parapatric speciation which occurs as a result of the spreading out of a population over a large geographical area and peripatric speciation which occurs as a result of the breaking off of a small group from a large group of organism.
In the illustration, the two populations of rabbits are separated physically by the river. Hence, the speciation that will occur if each population goes ahead to form a new species would be allopatric speciation.
Which of the following statements is a principle of the cell theory that supports the idea that new cell will replace damaged cells in a scraped knee
e Sudan Black
7. How many water molecules are removed when Sucrose gets broken down into glucose and
fructose?
a. 1
b. 2
C. 3
d None
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Human blood type is
determined by multiple alleles (A, B, and o) Which ratio would result from a cross between a man with heterozygous Type A blood and a woman with Type O blood?
50% Type A 50% Type O
50% Type AB 50% Type O
100% Type A
100% Type O
Answer:
Explanation:
1st one
Answer:
In this problem, there is no uncertainty abt the genotype of either parent. A parent of blood type AB has the co-dominant IA and IB alleles. A parent of blood type O is homózygous recessive for the i allele.
The Punnett square for their offspring is shown to the right. The genotypes of their offspring could be either IAi or IBi. Their children could be in blood groups A or B, but not AB or O.
Explanation:
Most-likely the third one.
Which is a resource that the National Park Service manages?
memorials
wildlife refuges
ecosystems
endangered species
Answer:
ecosystems
Explanation:
The resource that the National Park Service manages is wildlife refuges. Details about wildlife can be found below.
What is wildlife?Wildlife refers to living organisms or animals that are not domesticated and lives in their natural habitat.
In their natural habitats, these wildlife animals are being killed discriminately to the point of extinction.
This led to the development of national park reserves that are responsible for the management and safety of wildlife animals.
Therefore, the resource that the National Park Service manages is wildlife refuges.
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A scientist used a radioactive isotope of nitrogen to label the nitrogenous bases of the DNA in a bacterial cell. The labeled cells were then allowed to grow and divide for one generation in a medium of non-radioactive nitrogen.
Describe how the distribution of radioactive DNA to the daughter cells provides evidence for semiconservative replication of the DNA molecule.
Answer:
D!
Explanation:
I Saw This Question Before! Good Luck On Your Test Thingy!
The human body maintains homeostasis through a feedback loop mechanism. True or False)
Answer:
True
Explanation:
Answer:
true
Explanation:
Suppose the population of one species in an ecosystem changes. Could the population of a species that it isn’t directly a prey or a predator also change?
A) Yes, all life in an ecosystem is interconnected.
B) Yes, but only if the two species are in a direct line on the food pyramid.
C) No, population changes in one species only affect the populations of its prey and its predators.
D) Yes, but only if neither species is a predator species.
Answer:
A) Yes, all life in an ecosystem is interconnected
Explanation:
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Answer:It’s A hope these helps u !
Explanation:
what do the arrows in a food chain represent
Answer:
Essentially, it means that organisms must eat other organisms. Food energy flows from one organism to another. Arrows are used to show the feeding relationship between the animals. The arrow points from the organism being eaten to the organism that eats it.
Explanation:
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the blunt, cartilaginous, lower
tip of the sternum
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Which airline has that logo?
A) Pepsi airlines
B) Korean airlines
C) Indian airlines
D) Arabian airlines
Answer:
The answer is B: Korean Airlines
Explanation:
Answer:
B) Korean airlines
Explanation:
Please answer, photo is above thank you!
organisms that live in the savanna and grassland biomes have developed unique adaptions that aid in their survival which of the following organisms is most likely to be found in grassland
a bird that nests in trees
an animal that burrows
a large predatory bird
an animal not adapted to cold temperatures
Answer:
warm
Explanation:
an animal that burrows
PLEASE HELP Select from the drop-down menu to correctly complete the statement. Different types of cells within an organism 1.All are the same 2.Serve a different function 3.Can survive on their own 4.Do not have any function
Answer:
The correct answer is - 2. Serve a different function
Explanation:
In a multicellular organism there are different type of the cells present and termed and differentiat on the basis of their specific function in the body or the location in the body. The different type of cells present are epithelilal cell, nerve cells, connective tissue cell and muscle cell. These cells can be further divided on their function as well such as cardiac cell, hepatic cell, nephron cells and neurons and many other cells.
All these specialized cell peroform their own function in the body such as nephrons helps in blood purification, hepatic cells help in various functon include synthesis of bile and hormones and metabolism. Cardiac muscles made up of cells that helps in puming the blood and mainataining blood flow.
Which property of water explains how water droplets are absorbed by a paper towel?
Water's adhesion to other types of molecules
Water's high heat of vaporization
Water's high surface tension
Water's buffering capacity
Answer:
A. water's adhesion to other types of molecules
The property of water that explains how water droplets are absorbed by a paper towel would be its adhesion.
Adhesion refers to the force of attraction between the molecules of different substances. It is as opposed to cohesion which is the force of attraction between the molecules of the same substance.
When the adhesive force between water molecules and the molecules of another substance is greater than the cohesive force between water molecules, water will stick to such a substance. If the reverse were to be the case, water will not stick to the substance. Instead, the water molecules will form droplets on the substance.
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A strand of messenger RNA is attached to a ribosome and is directing protein synthesis. The next exposed codon of this messenger RNA has the code GAA. It is most likely to bond with a transfer RNA that has which amino acid?
Answer:
Glutamic acid or Glutamate
Explanation:
This question is describing the process of TRANSLATION, which is the process by which protein is synthesized from a mRNA template. In the process of translation, a molecule called transfer RNA (tRNA) reads mRNA codons and carries its corresponding amino acid to the growing polypeptide chain.
According to this question, strand of messenger RNA is undergoing translation in the ribosome. However, the next exposed codon of this messenger RNA has the code GAA. A tRNA carrying an amino acid that corresponds to the codon GAA will attach to it. This amino acid is GLUTAMIC ACID.
N.B: codon GAA encodes amino acid GLUTAMIC ACID
Compare and contrast a human skin cell to a plant leaf cell. How
are they similar and how are they different?
Answer:
Both human skin cell and plant leaf cell have cytoplasm, cell membrane and a nucleus but a plant leaf cell have a cell wall and chloroplasts while a human skin cell does not have a cell wall or chloroplasts.
Explanation:
An animal cell and a plant cell have similar cell parts but a plant cell has an extra cell wall. Leaf cells also have chloroplasts to make food unlike other plant cells like root cells.
The genetic material of a virus consists of..?
A) DNA only
B) surface proteins
C) capsids
D) RNA or DNA
Answer:
D) RNA or DNA
Explanation:
Most viruses either have RNA or DNA as their genetic material.
Have a good day everyone :)
it can either be rna in riboviruses(hepatitis c for example) or dna in adenoviruses(like parvovirus)