Answer:
<em>2</em>
Explanation:
<em>Without oxygen, a cell can extract a net gain of only 2 molecules of ATP from each glucose molecule.</em>
Eutrophication
Greek word meaning "well-nourished"
B: 0.5 million years
If there are no plants in the tank, they will run out of oxygen because there is nothing producing oxygen.
The Spanish fly is a species of a beetle `