Which of the following structures does not contain significant amounts of the protein collagen? a. dermis b. hair c. compact bone d. skeletal muscles

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.

What are the 3 types of artificial cloning

How does science influence the decisions made about social, economic, and political issues?