A toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
It would probably be .D. Plankton populations decreasing.
13
Explanation:
We will divide the total number of the teachers (246) in the auditorium with the maximum number of seats per row (18) to determine how many rows are completely filled;
246/ 18 = 13.6667
We are only interested in rows that are completely filled which is the whole number;
= 13
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Your answer would be D, because these are all relating to how the actions of the scientists will affect the environment and/or organisms.
Answer:
the basilar membrane
Explanation:
The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as vestibular duct.