Which of the following statements about biogeochemical cycles is true?
a.
biogeochemical cycles are cycles involving only nonliving components.
b.
the rock cycle is a biogeochemical cycle.
c.
biogeochemical cycles are not an important part of the earth system.
d.
carbon, nitrogen, and oxygen cycles are biogeochemical cycles.
c?

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.