I would choose answer choice D.
Sexual reproduction makes genetically diverse offspring, while asexual reproduction makes genetic clones of itself, and doesn't require another parent.
The answer is hox gene.
Hox genes are responsible for an embryo's body plan. They determine different body structures - legs, vertebrae, antennae, wings, depending on groups. Mutation in hox genes is serious mutation since it affects the early stages of embryo and consequently, normal development. If a mutation occurs in the hox gene for legs growth, the legs will not develop.
Geothermal Energy and Solar Energy
Mainly because it was extremely hot at the beginning of Earth's time.
