An organism's ability to maintain a stable internal environment in the midst of external environmental change is known as

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)

This is a biological reaction due to a stimulus. i need this quickly !