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Ecology Terms

Ecology terms and definitions for grade 9 science

TermDefinition
Ecology How organisms interact with each other and their environment.
Abiotic Non living things, physical things like minerals, air, or things measured with temperature or hours of daylight or salt concentration.
Biotic Living things, organisms like plants animals,or algae.
Ecosystem Any network of interacting living and non-living things.
Natural Ecosystem Neither planned or maintained by people.
Artificial ecosystem Artificial ecosystem is planned and maintained by people. Examples are cities, zoos, aquarium, farms.
Species A group of similar organisms in an ecosystem that can reproduce with each other.
Population A group of members of the same species that live in the same area.
Community Population of different species that live and interact in the same area. These species compete for resources within that area.
Niche All the interactions of a given species with its ecosystem.
Biome Large geographical region that contains similar ecosystems.
Terrestrial Land-based animal, plant or ecosystem.
Aquatic Water based animal, plant, or ecosystem.
Biosphere A part of our planet, including water, land and air, where life exists. Biomes combine to this form...
Herbivores An animal that only eats plants.
Carnivores An animal that only eats meat.
Omnivores An animal that eats both plants and meat.
Predators Animals that catches and feeds off of other live animals.
Scavengers An animal that mostly eats decaying biomass.
Parasites Obtain their food by feeding off another organism like the fish on sharks stomach.
Detritivores A consumer that feeds off of organic matter such as a magget or earthworm.
Decomposers A special group of consumers that break down organic matter and release the nutrients back into the ecosystm.
Autograph Organisms that can make their own food from basic nutrients and sunlight like green plant, algae.
Heterotroph Organisms that must feed on the other organisms to obtain energy.
Food Chains Show a step by step
Photosynthesis The process plants use to produce carbohydrates from carbon dioxide, water, and sunlight. (CO
Biodiversity Number and range of different organisms in an area.
Toxins Substances that are created by plants that are poisonous(toxic) to humans.
Bioaccumulation Gradual build-up of chemicals in an organism's body.
Respiration The process by which organisms exchange gases, especially oxygen and carbon dioxide, with the environment.
Extirpated Species that no longer exist in a particular region but still occurs elsewhere.
Amphibious born in water, breathing with gills but can live on land or in water.
Carrying Capacity Maximum number of individuals that an ecosystem can support without reducing its ability to support future generations of the species.
Commensalism Type of symbiosis in which one species benefits from a relationships without helping or harming the other species.
Mutualism A type of symbiosis in which both species benefits from the symbiotic partnership.
Symbiosis Close intention between two different species in which members of one species lives in on or near members of another species.
Environment All living things and nonliving things that exist on Earth.
Habitat The natural home or environment of an animal, plant, or other organism.
Food Webs A pictorial representation of the feeding relationship among organisms in an ecosystem.
Created by: me517re
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