Differences in blood flow during embryo development mean that identical twins (i. e. monozygotic) will develop different a. Eye colors

b. Fingerprints c

. Blood types d.

Sexes

e. Hair colours

I can't seem to find a definite answer online, does anyone know what this is?

The answer is D(sexes)

Explanation:

This is because monozygotic twins are genetically nearly identical and they are always the same sex unless there has been a mutation during development.

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:

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck