Answer:
Answer is B. Positive feedback regulation can generate an abrupt, all-or-none response in which the cell moves from ignoring a signal to responding to it very strongly.
Explanation:
Positive feedback can be described as an example of feedback, which is a natural mechanism that amplifies the action of a system.
It can be better be explained further, as a situation whereby the blood pressure decreases and the response of the body also makes or causes the blood pressure to decrease the more.
Other examples of a positive feedback also include blood clotting, ripening of fruits , uterus muscle contraction, resulting to the stretching of the uterus during pregnancy.
Answer:
I think the answer is A but I also feel like it would be C but I go with A because you can see that it is two or more elements in A but not so much in C
A. The fossils are an extinct species of elephants, and they’re related to present-day elephants.
The fossils are an extinct specie of elephants, and they're related to present day elephants.
Hope it helps.