Oceans, coral reefs, and the coastal zones are types of
ecosystems.

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

Animals that have thick fur and ae able to store large amounts of body fat live where ?