The answer is A. Oligotrophic lakes are clear and hence
have little vegetation in them (hence no net primary production) that
could initiate the process of eutrophication. Eutrophication is brought about when bacteria
break down the high amount of organic matter hence reduce the oxygen supply in
the waters.
Re-uptake, the absorption of excess neurotransmitter that has been secreted into the synaptic gap by a presynaptic nerve ending
Answer:
three to four letters to the left before it jumps over to the next fixation point.
Explanation:
