In an evolutionary classification scheme, species within one genus should
a. be more similar to each other than they are to other species.
b. not be similar in appearance.
c. be limited to species that can interbreed.
d. have identical genes.

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

the real answer is b. scintillation counter

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

what? are the statements?