macromolecule that is nonpolar and insoluble in water.

hormone derived mostly from cholesterol

(also, pH paper) filter paper treated with a natural water-soluble dye that changes its color as the pH of the environment changes in order to use it as a pH indicator

organ that produces bile for digestion and processes vitamins and lipids

most primitive group of the non-vascular plants

soil that has no dominant particle size

renal pyramid along with the adjoining cortical region

leveling off of exponential growth due to limiting resources

bone that is longer than wide, and has a shaft and two ends

prolonged decrease in synaptic coupling between a pre- and postsynaptic cell

prolonged increase in synaptic coupling between a pre-and postsynaptic cell

part of the renal tubule that loops into the renal medulla

type of connective tissue with small amounts of cells, matrix, and fibers; found around blood vessels

clade of protostomes that exhibit a trochophore larvae stage or a lophophore feeding structure

consists of the thigh, the leg, and the foot