I'd say A: tidal waves. B, C, and D don't really seem to fit for me.
Nerve cells release neurotransmitters across gaps and secretion of proteins and wastes: it’s Exocytosis
Electron shell is the outer orbital, while the inner orbital are just called orbitals.
Answer:
The primary factor which determines a biome is the climate. Temperature and precipitation essentially determines what kind of growing season or soil quality the terrain may have,which therefore affects the growth of plants living there.
Genetic diseases is one of the topics that will be covered in biology
