Many whales have tiny, unused hip and pelvis bones on their torsos. how does this evidence support theories about animal evolution? a. it shows that whales may have evolved from land-dwelling animals. b. it shows that whales evolved at the same time as other non-marine animals. c. it shows that many animals, including whales, evolved to have unused body parts. d. it shows that marine animals, like whales, evolved much more slowly than land-dwelling animals.

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:

the answer to your question is sperm