The biomass pyramids for phytoplankton and trees in their respective environments are
a. both inverted
b. the same
c. opposite
d. both normal

What is one function of the embedded proteins

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis