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Part 3 Vocabulary

TC3 BIOL 105 Final Exam (ch. 40-43)

TermDefinition
Photic zone In an aquatic biome, the area where there is sufficient light for photosynthesis
Bioremediation The intentional use of organisms (usually prokaryotes, fungi, or plants) to detoxify polluted ecosystems
Aphotic zone The part of the ocean that doesn't get enough light for photosynthesis.
Keystone species Species that exert strong control on community structure by the pivotal importance of their ecological roles
Detritus Nonliving organic material, such as the remains of dead organisms, feces and fallen leaves
Niche An organism's "job" in its ecosystem; its use of the biotic and abiotic resources
Emigration movement of individuals out of a population
Limiting nutrient A chemical component that greatly impacts the overall growth of a population; it often must be added for production to increase
Carrying capacity The maximum population size that an ecosystem's available resources can support
Biodiversity hotspot A relatively small area with numerous endemic species and a large number of endangered and threatened species
Invasive species Non-native organism introduced to an area, usually by accident
Trophic efficiency The percentage of production transferred from one trophic level to the next
Herbivore vs carnivore Herbivore: A consumer that does not feed on animal products; Carnivore: A consumer that feeds on animal products
Producer vs consumer Producer: General term for any organism that can create its own nourishment using, usually as a result of photosynthesis; Consumer: An organism that obtains energy by feeding on other organisms
Detrivore (decomposer) An organism that gets its nutrients from dead or decaying organic material
Predator/prey Predator: In a hunt for food, this is the organism doing the hunting; Prey: The organism being hunted
Biotic factors all the living things in an ecosystem
Abiotic factors all the nonliving things in an ecosystem
Created by: PRO Teacher etucci
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