Gregory Mendel was the first to use ( ) to explain genetic heredity and to trace one trait through ( ). A.) Chromosomes, genetics
B.) Probability, generations
C.) Probability, genetics
D.) Chromosomes, generations

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.

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

Which organelle breaks down sugar molecules that supply energy to the cell ?