Sand particles carried by wind can grind against the surface of rocks. this is called

a) abrasion
b) hydrolysis
c) oxidation
d) deposition

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

the answer is d.) homologous; have mammary glands

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.