This neurotransmitter is an antagonist. acetylcholine
both
GABA
neither
which one?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

What processes would you expect to be key in the production of yogurt ?

20 the main source of energy for our planet comes from the