(also, invasive species) species that has been introduced to an ecosystem in which it did not evolve

(also, invasive species) species that has been introduced to an ecosystem in which it did not evolve

amount of additional air that can be exhaled after a normal exhalation

accelerating growth pattern seen in species under conditions where resources are not limiting

short STS that is identified with cDNA

still-living species

movement in which the angle between the bones of a joint increases; opposite of flexion

fertilization of egg by sperm outside animal body, often during spawning

no-longer-existing species

disappearance of a species from Earth; local extinction is the disappearance of a species from a region

disappearance of a species from Earth; local extinction is the disappearance of a species from a region

number of species becoming extinct over time, sometimes defined as extinctions per million species–years to make numbers manageable (E/MSY)

number of species becoming extinct over time, sometimes defined as extinctions per million species–years to make numbers manageable (E/MSY)

food is taken into the gastrovascular cavity, enzymes are secreted into the cavity, and the cells lining the cavity absorb nutrients

region of a cell-surface receptor that is located on the cell surface