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Vocabulary 1

TermDefinition
Ecology (p 388) study of the interactions among living things and their surroundings.
Ecosystem (p389) collection of the organisms and nonliving things, such as climate, soil, water,and rocks, in an area.
Community (p389) collection of all of the different populations that that live in one area.
Biome (p389) regional or global community of organisms characterized by the climate conditions and plant communities that thrive there
Autotroph organism that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals.
Consumer organism that obtain its energy and nutrients by eating other organisms
Producer (p398) organism that its energy from abiotic sources, such as sunlight or inorganic chemicals.
Heterotroph organism that obtains its energy and nutrients by consuming other organisms.
Chemosynthesis process by which ATP is synthesized by using chemicals as an energy source instead of light.
Food Chain (p400) model that links organisms by their feeding relationships
Herbivore organism that eats only plants
Carnivore organism that obtains energy by eating only animals.
Omnivore organism that eats both plants and animals
Detritivore organism that eats dead organic matter
Decomposer detritivore that breaks down organic matter into simpler compounds, returning nutrients back into an ecosystem
Generalists species that does not reply on a single source of prey
Trophic Levels level of nourishment in a food chain.
Food Web model that shows the complex network of feeding relationships within an ecosystem
Created by: cagui1700
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