What is the superposition of strata theory? a. that rock strata has been laid down for 4.6 billion years

b. that sedimentary rick is composed of bits of rock eroded minerals

c. that oldest layers of sediment in rock formations are found under more recent layers

d. that the earth is composed of a core, mantle, and crust

C. That oldest layers of sediment in rock formations are found under more recent layers

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.