hydrocarbon consisting of closed rings of carbon atoms

small vessel that connects an artery to a capillary bed

blood vessel that takes blood away from the heart

phylum of animals with jointed appendages

any place where two bones are joined

part of the loop of Henle that ascends from the renal medulla to the renal cortex

fruiting body of ascomycetes

(also, sac fungi) phylum of fungi that store spores in a sac called ascus

form of reproduction that produces offspring that are genetically identical to the parent

biomass consumed and assimilated from the previous trophic level after accounting for the energy lost due to incomplete ingestion of food, energy used for respiration, and energy lost as waste

when individuals tend to mate with those who are phenotypically similar to themselves

glial cell in the central nervous system that provide nutrients, extracellular buffering, and structural support for neurons; also makes up the blood-brain barrier

describes animals with no axis of symmetry in their body pattern

disease where there are no symptoms and the individual is unaware of being infected unless lab tests are performed

buildup of fatty plaques in the coronary arteries in the heart