BIOLOGY HIGH SCHOOL

Which of the following is shared by both plant and animal cells?A. nuclei
B. cell walls
C. centrioles
D. central vacuoles

Answers

Answer 1
Answer: The correct answer is A. Both plant and animal cells are eukaryotic cells, so they will both have similar shared organelles. However, the cell wall and central vacuoles are only found in plant cells, while centrioles are only found in animal cells.
Answer 2
Answer:

A is the correct answer!

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Which process occurs in the structures that are labeled X?

Answers

According to a source, mitosis.

Mitosis and meiosis are simply cell division processes that occurs differently, they're characteristically divergent from each other according to their function and structure. Mitosis is the cell division that happens in all cells in the human body except sperm and egg cells. They produce diploid cells. Take for instance your integumentary system, layer of the skin in which your stratum basale always produces new epithelial cells (via mitosis) to take over until the outer layer, called stratum corneum (a continous replaced dead cells in this layer). 

How do farmers contribute to water pollution?A. by dumping garbage into the water
B. by fertilizing their crops with nitrogen compounds
C. by fertilizing with sulfur dioxide
D. by not using fertilizers

Answers

The best answer is B. Farmers contribute to water pollution by fertilizing their crops with nitrogen compounds. Fertilizers have high contents of nutrients which includes compounds with nitrogen. This may contribute to water pollution when farmers overfertilize their crops which some of the fertilizers run off to bodies of water and may cause eutrophication.

What is an effect of genetic drift on a gene pool?

Answers

Genetic drift is a random of sampling of alleles from the gene pool. if a chance of a  forest fire for example kills all but two of the population, the maximum number of alleles two the individuals at as a single gene would be 4, if both heterozygous for different alleles, all the other ones would be lost and the remaining alleles would increase in frequency.

Answer:

Genetic drift reduces the size of gene pool of the population.

Explanation:

Genetic drift is any chance event that results in changes in the allele frequency of a population. The event either fixes an allele on the particular locus or makes the population to lose that allele.

Hence, genetic drift changes the genetic frequency by removal of a particular allele or by fixing it in the gene pool. Both conditions lead to reduced genetic variations in the population. And since genetic drift reduces the size of the population, the gene pool of the population would also shrink due to loss of alleles from it.

A chromosome has an inversion.which describes a pericentric inversion?

Answers

Deletion of genes around the centromere is considered a pericentric inversion. The Pericentric inversions include the centromere and there is a break point in each arm. Deletions and duplications occur during crossing over during the inversion which results in recombination in two loops.
Deletion of Genes is the answer :) hoped I helped I took the test it came out correct.

What happens during G1 phase?
a

Answers

Answer:

Growth and Development.

Explanation:

.

Why is homeostasis important for survival

Answers

Homeostasis is maintaining an equilibrium or balance. Human bodies only function under very specific conditions, so it is important to maintain them through homeostasis. Otherwise, the proper conditions to function will be missing and we won't be able to function at all.
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