Which of the pharmacological revolutions was described as important because powerful drugs "were not being used to prevent or treat disease but were being used by healthy people to gain chemical control over their own bodies"?

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

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.