20 points to whoever gives me the answer! question: identify the component (a part of a larger whole) of blood that is responsible for protecting the body from disease.

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.

What could happen if two base pairs on a strand of dna or switched

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.