Following the sequence of Mendel's heritability study in paragraph 6, which of the
following is true?
A Mendel began by breeding two of the same true-breeding parents.
B Mendel began by breeding two different types of true-breeding parents.
C The offspring of the P generation were known as the first filial generation.
D Both B and C

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.