Answer:
Lack of oxygen
Explanation:
There are two mechanisms for energy production (glucose breakdown), aerobic and anaerobic. When adequate amounts of oxygen are present, aerobic mechanism is used. However, when there is insufficient oxygen, such as during exercise, the anaerobic mechanism is used.
A.Humans use their knowledge to locate resources for them selves thereby reducing competition among them
Answer:
it's too early for this, also im pretty sure all we know is that their ancestors are wolves and that's it.
Explanation:
Answer:
regulates which materials enter and leave the cell
