Aball is rolling down a hill. at one point near the top of the hill, its velocity is 2 m/s. further down the hill, its velocity is 9 m/s. what is ? v? 9 m/s 7 m/s -7m/s -7m/s2

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

When ash and dust begin to settle on the ground, they eventually become compacted by

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.