The oxygen sag curve is related to all of the following except a. oligotrophic lakes b. biological oxygen demand c. eutrophication d. fish kills

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.

b because they naturally adapt to their environment plz mark brainliest

explanation:

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u