Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
habitat isolation
Glossaries - Biology glossary

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

habituation
Glossaries - Biology glossary

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

hagfish
Glossaries - Biology glossary

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

hairpin
Glossaries - Biology glossary

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

halophile
Glossaries - Biology glossary

organism that require a salt concentration of at least 0.2 M

handicap principle
Glossaries - Biology glossary

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

haplodiplodontic
Glossaries - Biology glossary

haploid and diploid stages alternate

haplontic
Glossaries - Biology glossary

haploid stage is the dominant stage

Haversian canal
Glossaries - Biology glossary

contains the bone’s blood vessels and nerve fibers

haze-effect cooling
Glossaries - Biology glossary

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

heat
Glossaries - Biology glossary

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

heat energy
Glossaries - Biology glossary

total bond energy of reactants or products in a chemical reaction

heat energy
Glossaries - Biology glossary

total bond energy of reactants or products in a chemical reaction

heat of vaporization of water
Glossaries - Biology glossary

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

heirloom seed
Glossaries - Biology glossary

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

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