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Chapter 18 Vocab.

Vocabulary for Chapter 18 of Science

TermDefinition
Ecology the study of the interactions of living organisms with one another and with their environment
Biotic describes living factors in the environment
Abiotic describes the nonliving part of the environ- ment, including water, rocks, light, and temperature
Organism a living thing; anything that can carry out life processes independently
Habitat a habitat is an area were an organism can live
Population a group of organisms of the same spe- cies that live in a specific geographical area
Community all of the populations of species that live in the same habitat and interact with each other
Ecosystem a community of organisms and their abiotic, or nonliving, environment
Biosphere the part of Earth where life exists
Producer an organism that can make its own food by using energy from its surroundings
Consumer an organism that eats other organisms or organic matter
Decomposer an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
Herbivore an organism that eats only plants
Carnivore an organism that eats animals
Omnivore an organism that eats both plants and animals
Food chain triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain
Food Web a diagram that shows the feeding rela- tionships between organisms in an ecosystem
Energy pyramid a triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain
Created by: Spicer91
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