Heat flow and movement of rock material within earth are directly responsible for which of the following? A. Fluctuation of average daily temperature

B. Formation of mountains and ocean basins

C. Increasing concentration of salt in the oceans

D. Gradual breaking down of rocky structures

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.