What are some advantages of being multicellular? Select all that apply.

ability to live in new environments
greater complexity
larger body size
higher demand for energy

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

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

What causes darkening of the skin as melanin production increases