1. a woman with hemophilia marries a man who does not have hemophilia. what are the possible phenotypes of their children? 2. a woman without hemophilia marries a man with hemophilia. they have a daughter with hemophilia. what is the genotype of the mother and father?

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

Cells destroy body cells infected by a virus or bacteria.

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.