Which traits are characteristic of both single-celled and multicellular organisms? choose all answers that are correct. a. are of an equally small size b. survival depends upon availability of resources c. have specialized cells for different functions d. meets life's challenges by getting and using energy

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 drives an advertising campaign?

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box