Plz need ! (20 pts) will give ! some cells will undergo program death when (a.) healthy (b.) diseased (c.) dividing (d.) differentiating

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

How do living things obtain phosphorus

What is one affect on the australian environment due to the introduction of non-native european rabbits