Alison is right because for example:
Say you have a ball you pull on it the left side and then the right, if you pull on both sides the at the same time at an equal force the ball wont move....Its Newtons first law of motion
Answer: Alison is right because of Newtons first law of motion
Answer choice B.
Negative feedback is when the system is always returning to the same consistant conditions.
A good example of negative feedback would be body temperature (always returns to normal, despite small flunctuations).
Positive feedback always progresses completely. Like growth (once you grow, you stay that way) & pregnancy (fetus is constantly growing and then undergoes childbirth, a forward process).
Hope that helps!
They are called nephridia................B
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