(a)   refers to the process by which plants and certain forms of bacteria use chlorophyll to convert carbon dioxide, energy, and water into sugar and release excess oxygen as a byproduct.

(a)   refers to the diversity of genes in individuals or populations.

(a)   is change over time.

(a)   is the process whereby organisms better adapted to their environment tend to survive and produce more offspring.

(a)   is the formation of new, distinct species through evolution.

(a)   is a group of similar, living individuals that can interbreed and produce viable offspring.

(a)   refers to any cellular organism that has no nucleus.

(a)   refers to an organism whose cells contain a nucleus.

(a)   are a group of unicellular microorganisms that have cells walls but lack organelles and an organized nucleus.

(a)   are similar bone or organ structures that are found in different organisms, indicating a common ancestor.

(a)   means consisting of a single cell.

(a)   is the process of forming new combinations of alleles in offspring.

(a)   describes the decreased susceptibility of a pest population to a pesticide that was once effective at controlling the pest.

(a)   means consisting of many cells.

(a)   is an infective agent that is only able to multiply within the living cells of a host.

(a)   are similarities of organisms in regards to their basic, biochemical makeup.

(a)   occurs when bacteria change in a way that reduces the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections.

(a)   is the event in which a population of organisms cannot breed due to physical barriers.