Glossary of terms used on this site

reproductive isolation resulting when species' populations move or are moved to a new habitat, taking up residence in a place that no longer overlaps with the same species' other populations

ability of a species to ignore repeated stimuli that have no consequence

eel-like jawless fish that live on the ocean floor and are scavengers

structure of RNA when it folds back on itself and forms intramolecular hydrogen bonds between complementary nucleotides

organism that require a salt concentration of at least 0.2 M

theory of sexual selection that argues only the fittest individuals can afford costly traits

haploid and diploid stages alternate

haploid stage is the dominant stage

contains the bone’s blood vessels and nerve fibers

effect of the gases and solids from a volcanic eruption on global climate

energy transferred from one system to another that is not work (energy of the molecules' motion or particles)

total bond energy of reactants or products in a chemical reaction

total bond energy of reactants or products in a chemical reaction

high amount of energy required for liquid water to turn into water vapor

seed from a plant that was grown historically, but has not been used in modern agriculture on a large scale