Answer:
A. The algae are heterotrophs
Explanation:
Algae which are heterotrophic obtain nutrients from complex organic substances. Thus, this type of algae is a consumer. This is in contrast to autotrophs, which form their own organic substances from simple inorganic substances. They produce their own energy
The diammonium phosphate which run off until the lake nourish these algae and make them grow without limit.
The food web would be likely destroyed because one animal will not have nothing to eat out of the food we’d and then that’s how the food web will be messed up
A.) Guanine = 45
B.) Adenine = (100 - 90 )/ 2 = 10/2 = 5
Hope this helps!
