You would expect to find that as the generations pass, the offspring of the Bone-gnawers would have short, wide mouths and strong chewing muscles. The Non-gnawers would have longer, narrower mouths, and weaker chewing muscles. This is because the offspring would inherit the parent's traits, and this would lead to eventual less genetic diversity as the two groups of coyotes inbred more and more. (Sorry if I went further than needed, just trying to be thorough! I really hope that this helps!)
D is the answer. The level of matter cannot be shifted, it can only stay constant even during chemical reactions.
Response would be correct, as in response to environment.
