10. Humans, apes, cats, dogs, and more share a large, hollow chest cavity protected by ribs. These ribs serve similar functions in each animal to allow for breathing and to
protect vital organs. Ribs, as described here, are most likely examples of what type of structure?
he is
A. Analogous structure
B. Vestigial structure
C. Morphology
D. Homologous structure

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:

every el niño cycle is different. every year.

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.