Answer:
C. calcium ion levels.
Explanation:
Calcium enters the axon terminal during an action potential,
Answer:
The ATP molecule stores and creates energy. If this is not a multiple choice, then stores and increases energy is the most likely candidate.
Explanation:
ATP is able to store and transport chemical energy within cells. ATP also plays an important role in the synthesis of nucleic acids.
It won't move until a kick (outside force) is applied because the rock has more friction it stops the ball more easily.
First step the biologist needs to make an observation in which to create a hypothesis.
