In the sexually reproducing Donax variabilis, a coquina mollusk, a large differentiation in physical characteristics allows them to successfully populate their environment. Which of the following images represents the chromosomal organization during meiosis that will increase the population’s potential survival rate the most? Chromosomes in a cell during meiosis. Top is blue chromosome, red chromosome. Bottom is blue chromosome, red chromosome.
Chromosomes in a cell during meiosis. Top is blue chromosome, red chromosome. Bottom is red chromosome, blue chromosome.
Chromosomes in a cell during meiosis. Top is blue chromosome with a small red segment at bottom right, red chromosome with a small blue segment at bottom left. Bottom is blue chromosome, red chromosome.
Chromosomes in a cell during meiosis. Top is blue chromosome with a small red segment at bottom right, red chromosome with a small blue segment at bottom left. Bottom is red chromosome, blue chromosome.

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:

lipid

explanation:

. the sierra madre fault zone of southern california

. the san andreas fault california