Pythons have small leg bones buried in their tail muscles. What can scientists conclude from this observation? A. The leg bones help the pythons move. B. The leg bones will not be passed down to future generations. C. Pythons descended from an animal with legs. D. Future generations of pythons will have legs.
There are 13 species of Darwin's finches on the Galapagos Islands. They have many similar features but differ in beak, size and shape which explanation accounts for these characteristics ? A. Each finch species evolved from a different ancestor. B. All finished species evolved from a common ancestor. C. Finch species have similar diets. D. Finch species interbred.
B. All finch species evolved from a common ancestor.
