What would you expect to see in their offspring if you cross a yellow one with a purebred red one? what percentages would you expect in the offspring genotypically and phenotypically?

3:1.

Explanation:

If we cross a yellow one with a purebred red one, the dominant allele has the large percentage in the appearance of offspring whereas little appearance of recessive allele occurs in the offspring. The offspring has 75 percent of the traits of dominant parent in its genotype and phenotype while on the other hand, the offspring receives 25 percent of characteristics from the recessive parent. So we can say that more offspring resembles to dominant parent.

the answer is a) a shiprock was formed by igneous process

the correct answer is:

a population changes in response to a change in the environment.