Glossary of terms used on this site

cultivated plant

binding of an antibody to an epitope corresponding to an antigen that is different from the one the antibody was raised against

transfer of pollen from the anther of one flower to the stigma of a different flower

exchange of genetic material between nonsister chromatids resulting in chromosomes that incorporate genes from both parents of the organism

geologic period (850–630 million years ago) characterized by a very cold global climate

protein that absorbs light in the blue and ultraviolet regions of the light spectrum

invertebrates found within the calcium carbonate substrate of coral reefs

specialized gill structure in mollusks

epithelia made of cube-shaped cells, specialized in glandular functions

disorder caused by the hypersecretion of glucocorticoids

gas exchange through the skin

waxy protective layer on the leaf surface

waxy covering on the outside of the leaf and stem that prevents the loss of water

waxy covering on the outside of the leaf and stem that prevents the loss of water

the tough, external layer possessed by members of the invertebrate class Ecdysozoa that is periodically molted and replaced