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Ecology Terms 2025

Gr 9 Ecology terms and definitions

TermDefinition
Ecology study of organisms interact with each other as will as with their in a system
Environment all living things and nonliving things that exist on Earth
Habitat: The natural home or environment of an animal, plant, or other organism.
Abiotic non living things, physical things such as , minerals, air or things measured such as temperature, hours of daylight, salt concentration
Biotic* non living things, physical things such as , minerals, air or things measured such as temperature, hours of daylight, salt concentration
Ecosystem: A complex self regulating system in which living things interact with living and non living things.
natural ecosystem natural ecosystem A natural ecosystem is neither planned nor maintained by people.
artificial ecosystem Artificial Ecosystem is planned and maintained by people. Examples: City, Zoo, Aquarium, Farm
Herbivores* An animal that eats ONLY plants.
Carnivores* An animal that eats mostly 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 which continues to live
Detritivores* - A consumer that feeds on organic matter
Population* - A group of members of the same species that live in the same area
Community*- >populations of different species that live and interact in the same area.
Ecosystem* _ interaction of community and surrounding abiotic components
Biome* -> Large geographical region that contains similar ecosystems
Biosphere*-> A part of our planet, including water, land and air, where life exists. Biomes combine to form this... >> organized<<
Biodiversity -> Number and range of different organisms in an area.
Toxins - harmful substances that contaminate the air, water, soil, and food, potentially causing health problems for organisms. Bioaccumulation- gradual build-up of chemicals in an organism’s body
Photosynthesis - The process plants use to produce carbohydrates from carbon dioxide, water, and sunlight.
Bioaccumulation- gradual build-up of chemicals in an organism’s body
Respiration - dioxide. the operation in which organisms within a specified ecosystem use the process to convert organic carbon to carbon dioxide.
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
Autotroph- Organisms that can make their own food from basic nutrients and sunlight. Examples:green plant,algae
Heterotroph - organisms that must feed on other organisms to obtain energy
Carrying capacity -> maximum number of individuals that an ecosystem can support without reducing its ability to support future generations of the same species
Commensalism - type of symbiosis in which one species benefits from a relationship without helping or harming the other species
mutualism A type of symbiosis in which both species benefit from the symbiotic partnership.
symbiosis - Close interaction between two different species in which members of one species lives in on or near members of another species
terrestrial - land-based animal
FOOD WEBS - A pictorial representation of the feeding relationships among organisms in an ecosystem
Food chains show two important things: A step-by-step sequence of who eats whom in an ecosystem. The one-way flow of energy from the producer to the top level consumer. show two important things: A step-by-step sequence of who eats whom in an ecosystem. The one-way flow of energy from the producer to the top level consumer.
Created by: li900be
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