Answer:
Each is used to break down substances.
Explanation:
Enzymes merely speed up a chemical reaction, not necessarily break down substances.
Typical types of neurotransmitters include small molecule neurotransmitter substances (acetylcholine, serotonin, dopamine, histamine, norepinephrine, and epinephrine), amino acids (GABA, glutamate), neuroactive peptides (insulin, glucagon) and soluble gases like nitric oxide and carbon monoxide
The conclusion that can be made given this information is that ants count their steps while walking.
And given that their legs were not either shorter or longer, that means their steps were either shorter or longer, which means that made either fewer or more steps then in the beginning. And if you take into consideration that they counted, let's say, 20 steps, and then either didn't get to their initial position or passed it, the answer is obvious.
3. 6 and 7 is the answer because most enzymes work best at 7ph.
