In cellular membranes, why do the tail ends of the lipid molecules face toward each other? a. the tails are hydroponic. b. the tails are hydrophilic. c. the tails are hydrophobic. d. the tails are hydrophosphoric.

What are two reasons for why a species might disappear from the fossil record?

Loss of protected health information collected for research should be directly reported to:

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.