On a small swampy island off of the coast of maine, mosquito larvae, which feed on algae, are eaten by atlantic salmon. in turn, the salmon are eaten by black bears. the black bears are
a) producers.
b) herbivores.
c) primary consumers.
d) tertiary consumers.

What part of the plant has the most chloroplsts?

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

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.