Answer:
oxygen
Explanation:
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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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.
Which of the following elements is known as "nuclear ash" when it forms inside a star?
Select one:
a. Hydrogen
b. Helium
c. Silicon
d. Iron
Answer:
D- Iron
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Iron is the ultimate nuclear “ash,” from which no nuclear energy can be extracted.
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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In ____ ecosystem decomposers breakdown dead or decaying organisms, returning nutrients to the soil to be used by plants.
a. An unstable
b. A balanced
c. A defective
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.
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
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
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
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:
Artificial selection has produced a wide variety of crop plants, livestock, and pets. Which characteristic of artificial selection makes it different from natural selection
Answer:
Genetic Problems
Explanation:
When people genetically modify animals, they can mess up a lot of their natural abilities. For example in some cases scientist have made cows who produce more milk, but couldn't reproduce anymore because of it. Sometimes it even hurts the animal. People have bred dogs in certain ways that makes it hard for them to breathe, like Bull dogs who has respiratory issues. This makes decreases their life span and continuing to bred them will only make it worse. When scientist have a certain trait they want they also make animals breed with their own families. Incest creates a lot of genetic problems.
I hope this helped.
Several different amino acids join together to form a protein. How do any two types of amino acids differ from one another?
A. the number of amino groups in the molecule
B. the number of carboxyl groups in the molecule
C. the chemical structure of the R group in the molecule
D. the number of chemical bonds formed by the central carbon atom
WHATS THE ANSWER EXPLAIN marking brainliest:D
Answer:
C
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:
plz give brailyest
Answer:It’s A hope these helps u !
Explanation:
What is the third part of cell theory?
All cells come from pre-existing cells
All cells contain DNA
All cells contain a nucleus
All cells maintain homeostasis
Answer:
Explanation:
All cells come from pre-existing cells
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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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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If more individuals are born with the advantageous trait in each generation, over time what do you predict will happen to the percentage (%) of the alleles (gene variety) that code for this trait in the population?
Answer:
The percentage (%) of the alleles that code for this trait in the population will increase, as more individuals are born with the trait.
Explanation:
The more individuals get born expressing the trait, the higher its frequency gets in the population. By generation, there are more individuals carrying the allele for the advantageous trait. These individuals reproduce and increase the probabilities of the progeny to inherit the mentioned allele. When this sequence keeps occurring in the population over many generations, the allele percentage will increase. On the other hand, the other allele or alleles will decrease. Probably, if there are no changes that might influence or affect this pattern, the alleles for the advantageous trait will fixate, while the other allele might get lost.
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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:
In the 1880s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals.
How is this method effective in fighting viral diseases?
Answer:
since Louis Pasteur developed a method of weaking the viruses, the weeked virus could be injected to healthy individuals. He did this becuase if you get injected by the weakened viruis you will have a greater chase of NOT getting that said virus.
Explanation:
Answer:
The immune system develops antibodies in response to the weakened viruses.
Explanation:
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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!
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.
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:
1. Explain the pathway of Endosymbiosis, and explain the job of all the organelles involved.
Answer:
All living things are made up of cells. Even though there are many millions of life forms on earth, all of them are made up of only two basic types of cell: prokaryotes and eukaryotes.Cells contain DNA. Prokaryotes (pro-carry-oats) are small and simple and have rings of circular DNA floating free inside the cell. Eukaryotes (you-carry-oats) are large and more complex.
The passing on of genes from parents to their offspring is known as
Answer:
Heredity
Explanation:
there is no explanation for this
Answer:
"Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring"
Are the following populations likely to be undergoing evolution? Read the description of the population and select yes or no from the drop-down menu. A laboratory population of beetles is kept under conditions ideally suited for that species. All the beetles' needs are met. The space is very large, but contained.
Yes or No
Answer: No
Explanation:
hope this helps !!
Answer:
The answer is NO,
the next answer is YES
Explanation:
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A medical test indicates that a patient has a defective protein. This condition is most
likely due to a change in the directions coded in the:
Answer:
the hereditary unit, gene
Why do levels of photosynthesis change based on location and time of the year?
Answer:
Because of the Earths rotation
Explanation:
Hope this helps
Answer:
Being in a hot climate can destroy the stage of photosynthesis or a cold climate, and if in the winter, it can get really cold, or in the fall windy...
Explanation:
What species and class does gossypium belong to?
Answer:
Gossypium belongs to the Gossypium arboreum L. species.