Light is made up of tiny bundles of energy called a: photographs b; photons c: neurons d. none of the above

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

The negative impacts of nonnative species generally outweigh the positive impacts

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.