Need answer !
internal gestation followed by live birth is an evolutionary development most likely driven by which of the following?
a. the inability of eggs to acquire nutrients to grow complex animals.
b. environmental conditions caused eggs to over-absorb dangerous molecules from the environment.
c. the need to give birth and reproduce on dry land where eggs could dry out.
d. the threat of predators to eat eggs.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

voluntary muscles are controlled by the cerebellum.

this is more of a statement than a question. is there answers to go along with this, or is it opinion based?

thats not a question