Which is true of plant cells and not animal cells? O A. They have a round shape.
O B. They have a nucleus. .
O c. They contain chlorophyll.
O D. They organize Into tissue.
O E. They are the smallest unit of living matter.

Plant cells contain chlorophyll.

Explanation:

Plants contain chlorophyll which is what causes plants to appear green.

Plants do not have a round shape they have a square boxish shape.

Plant cells do indeed have nucleuses like animal cells .

Plant cells organize into tissue like animal cells.

Plant cells are not the smallest unit of living matter, microorganisms are.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: