B. Two protons and two neutrons
I would believe the correct responses would be option 1,2,4.
C. the mesosphere is the correct answer
Well the insects eat the plant and the small animals eat the insects and so on.if the insects die the food chain is broken.
The answer to this question would be endocytosis.
Endocytosis a process to bring outside material into cell. The word "endo" itself mean "inside". This material could be source of energy or microbes that need to be killed. It's opposite would be exocytosis. The word "exo" itself mean "outside".
Both of them is pretty similar because they use vesicle to transport the things that need to be moved.
