Observe the diagram of a plate boundary , one statement best describes what is happening it is that ? ?

this is a typical subduction zone

Explanation: It means that there is one plate that is going under the plate next to it. This is a convergent boundary in which the plates are meeting each other and there is a plate denser or heavier than the other, that is why it goes under and the light plate goes up forming new land from the magma

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: