the liver of dog has been found to have a higher than normal cell death because of dna is damaged. what part of the cell failed to do its job of protecting the dna of cell

Answers

Answer 1

Answer:

Answer:

Nuclear envelop

Explanation:

Nuclear envelop is the double membrane structure that makes the boundary of the nucleus. It serves to protect the DNA from the toxins, wastes and other harmful substances produced during metabolic reactions of the cell occurring in cytoplasm.

If the nuclear envelope does not protect DNA, DNA could be damaged by free radicals or toxins. A cell with damaged DNA is subjected to death.

Answer 2

Answer:

Answer:

The Nucleus.

Explanation:

The nucleus is surrounded by a membrane called the nuclear envelope, which protects the DNA.

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1.Which of the following landforms results from erosion by glaciers and flowing water?

valley

volcano

sand dune

mountain

Answers

A valley is the result of erosion by glaciers and flowing water

Describe in order the steps in the life cycle of a seed-bearing plant, which reproduces sexually.Give a simple , but full answer.

Answers

I would say polon because it is how it reproduce's

Name the process that causes water to flow into organisms

Answers

Osmosis is a passive transport which moves water molecules from higher to lower gradient.
Osmosis then is the movement of water particles from which has water and from which has not and to provide it with the sufficient H2O.

The concentration of salt in water affects the rate of osmosis because it will determine how much water should be transported or excreted or to be taken in. The cellular process is keen to the salt concentration of its system thus making sure to maintain balance between the salt concentration the right amount of water must also be in its area of release for any expected occurences.

Explain why the life cycle of a star can be compared to the life cycle of a human.

Answers

when a star is created from gases,dust,an heat its starts off as a youngling per say,jus as u start off as an infant,when the star gets old an starts to burn off all the gases an dust it dies out,jus as the human body does as it ages,parts of it start to de-compose an die.

The lion-tailed macaque is a species of Old World monkey. Which of the following will the lion-tailed macaque reproduce with? A.
other lion-tailed macaques

B.
other macaques

C.
any Old World monkeys

D.
any monkey species

Answers

A.
other lion-tailed macaques

Answer: A. other lion-tailed macaques

What puts pressure on the cell wall to make the plant stand up?A. Cell Nucleus
B. Vacuole
C. Chloroplasts
D. Nucleus

I think its B but im not sure

Answers

I'm pretty sure it would be B, because it can't be any of the others.

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How many genes are required todetermine a polygenic trait?A. oneB. two or moreC. several thousand

I am:double strandedfound in the nucleushave four nitrogen basescontain deoxyribose sugarcontain thymine instead of uracilWhat important molecule am I?A)DNA B)RNA C)enzyme D)protein

Where does the salt in oceans come from? a)rocks and minerals on landb)rainfall and snowfallc)dead plants and animalsd)energy from the Sun