Select the choice that best completes the following sentence: Phospholipid molecules consist of and segments, and the lipid chain can contain and hydrocarbons.
A. head; tail; hydrophilic; hydrophobic
B. hydrophilic; hydrophobic; head; tail
C. saturated; unsaturated; head; tail
D. saturated; unsaturated; hydrophilic; hydrophobic
E. head; tail; saturated; unsaturated

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Apopulation of rabbits live in a local forest. some had a mutation for a large body and long legs. the graph below shows the number of both the mutant and the normal rabbits over 5 generations. which of the following statements is true for this scenario? question 7 options: the rabbits with the mutation were more successful with restricted food than the normal rabbits. both sets of rabbits were equally successful with the restricted food source.i the normal rabbits were more successful with restricted food than the rabbits with the mutation. the graph does not let us know which rabbit was more successful.

The solution inside a plant cell is approximately a 1% saline solution and a 21% nacl solution the ,cytoplasm of a plant cell will