Modern marvels the butchers video worksheet. Please help me to find the answer and thank you

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

What was the land like over 500 million years ago? what was under the sea?

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.