Which of the following best describes the interaction between earth’s crust and living organisms?
a. raw materials essential for life are cycled through earth’s crust.
b. fossil fuels are a valuable energy source for the biosphere.
c. the continental crust allowed the evolution of life on land.
d. the crust recycles the organic materials in sedimentary rock.

Which properties describe all matter?

Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot. active transport involves transport proteins, and facilitated diffusion does not. facilitated diffusion involves transport proteins, and active transport does not. active transport requires the expenditure of cellular energy, and facilitated diffusion does not.

The transport tubes for food coming down the plants are called?