loss of water vapor to the atmosphere through stomata

maximum amount of solute that can be transported out of the renal tubules during reabsorption

membrane protein that facilitates a substance's passage across a membrane by binding it

specific carrier proteins or pumps that facilitate movement

plane cutting through an animal separating the individual into upper and lower portions

when a purine is replaced by a pyrimidine or a pyrimidine is replaced by a purine

fat molecule; consists of three fatty acids linked to a glycerol molecule.

hair-like structure on the epidermal surface

one-way membranous flap of connective tissue between the atrium and the ventricle in the right side of the heart; also known as atrioventricular valve

thyroid hormone containing 3 iodines that controls the basal metabolic rate

animal that develops from three germ layers

otherwise diploid genotype in which one entire chromosome duplicates

first of the two larval stages in mollusks

position of a species or group of species in a food chain or a food web

energy transfer efficiency between two successive trophic levels