Asap plz
1.) how is it possible to have thousands of proteins but only 20 amino acids
2.)why arent lipids considered polymers\
3.)why is it easy to tell lipids and carbohydrates apart when viewing a model for each even though they are made from the same elements

What was photo 51 with rosalind franklin?

What happened to rosalind franklin in 1956?

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.