HELP PLS ASAP Which of the following is an example of an ecosystem?

Choose the correct answer.

a. an oyster

b. a school of fish

c. fish and sharks

d. the open ocean

What advantages does a pedigree have over a written passage?

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?

The offspring of a black cat and a white cat is a gray cat, it has the genotype bw if a black cat mates with a gray cat the chance that the offspring is white will be what percent?