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Ecology

TermDefinition
Autotroph Organism that makes own food.
Producer Organism that creates own food.
Dispersal Movement of organisms between locations.
Heterotroph Organism consuming other living things.
Consumer Organism that eats other things.
Exotic species Non-native species in an area.
Organism An individual living life form.
Herbivore Consumer that only eats plants.
Point source Single, identifiable source of pollution.
Habitat Natural home of an organism.
Carnivore Consumer that only eats meat.
Nonpoint source Pollution from many diffused sources.
Biotic factor Living part of an ecosystem.
Omnivore Consumer that eats everything plants/meat.
Biodegradable Capable of being broken down.
Abiotic factor Non-living part of an ecosystem.
Scavenger Eats bodies of dead organisms.
Natural resource Material found in the environment.
Species Group sharing similar genetic traits.
Decomposer Breaks down organic waste material.
Soil conservation Protecting soil from erosion/loss.
Population Same species in one area.
Food chain Single path of energy flow.
Crop rotation Planting different crops each year.
Community Different populations living together locally.
Food web Overlapping food chains in ecosystem.
Contour plowing Plowing fields across a hill.
Ecosystem Organisms interacting with physical environment.
Energy pyramid Diagram showing energy loss levels.
Conservation plowing Leaving stalks to protect soil.
Ecology Study of organisms and environments.
Nitrogen fixation Converting gas into usable nitrogen.
Biodiversity Number of species in area.
Immigration Moving into a new population.
Biome Region with specific climate/life.
Keystone species Species critical to ecosystem health.
Emigration Leaving one population for another.
Climate Long-term weather patterns in an area.
Endangered species At high risk of extinction.
Population density Number of individuals per area.
Desert Very dry area, little rain.
Threatened species Likely to become endangered soon.
Limiting factor Environmental factor restricting population growth.
Rain forest Dense forest with high rainfall.
Extinction Disappearance of an entire species.
Carrying capacity Maximum population environment can sustain.
Emergent layer Tallest trees above the canopy.
Habitat destruction Loss of a natural habitat.
Natural selection Survival of the best adapted.
Canopy Thick layer of upper foliage.
Habitat fragmentation Breaking habitat into smaller pieces.
Adaptation Trait aiding survival and reproduction.
Understory Shady layer below the canopy.
Poaching Illegal killing of wild animals.
Niche An organism's specific ecological role.
Grassland Area dominated by grass species.
Captive breeding Mating animals in controlled facilities.
Competition Struggle between organisms for resources.
Savanna Grassland with few trees.
Predation One organism eats another organism.
Deciduous tree Tree that sheds leaves annually.
Mutualism Both species benefit from interaction.
Boreal forest Cold forest with coniferous trees.
Commensalism One benefits, other stays neutral.
Coniferous tree Tree that produces seed cones.
Parasitism One benefits while harming another.
Tundra Extremely cold and dry biome.
Parasite Organism living on a host.
Permafrost Ground that stays frozen year-round.
Host Organism that a parasite harms.
Estuary Where fresh and saltwater mix.
Succession Predictable changes in an ecosystem.
Intertidal zone Area between high/low tide marks.
Primary succession Life starts on bare rock.
Neritic zone Shallow ocean over continental shelf.
Pioneer species First species to inhabit an area.
Biogeography Study of species' geographic distribution.
Secondary succession Life returns after a disturbance.
Continental drift Movement of Earth's land masses.
Created by: user-2020372
 

 



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