On the tree diagram above, which point represents the last common ancestor of rats and sheep? select one: a. point c b. point a c. point b d. point d

Which technically is nasa developing that will astronauts reach mars

What causes an unsaturated fatty acid to have a different shape than a saturated fatty acid? o a. unsaturated fatty acids have more hydrogen atoms. o b. unsaturated fatty acids have double carbon bonds. o c. unsaturated fatty acids have more nitrogen atoms. o d. unsaturated fatty acids have single carbon bonds.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.