91 less than the quotient of 12 and y algebraic expression

Does mitochondria still meet the definition of a eukaryote why or why not?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

Which feature would you expect to find in a population in which sexual selection depends on male competition?