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100
Ecology
What is the study of how living things interact with each other and their environments?
100
Biomass
What is the total mass of organisms at a trophic level?
100
Detritivore
What is an decomposer that consumes detritus?
100
Niche
What is the role of a species in its ecosystem that includes all the ways the species interacts with the biotic and abiotic factors of the ecosystem?
100
water cycle
What is interconnected pathways through which water is recycled through the biotic and abiotic components of the biosphere?
200
Trophic Levels
What are feeding positions in a food chain or web called?
200
Carnivore
What is the consumer that eats animals?
200
Detritus
What is a substance composed of dead leaves, other plant remains, and animal feces that collects on the soil or at the bottom of a body of water?
200
Omnivore
What consume both plants and animals?
200
Evaporation
What is a process in which liquid water changes to water vapor?
300
Abiotic factors
What are the nonliving aspects of the environment?
300
chemoautotroph
What is a producer that uses energy from chemical compounds to make food by chemosynthesis?
300
Food Chain
What is a diagram that represents a single pathway through which energy and matter flow through an ecosystem?
300
Saprotroph
What is a decomposer such as a fungus or protozoan that feeds on any remaining organic matter that is left after other decomposers do their work?
300
groundwater
What is water that exists in the ground either in the soil or in rock layers below the surface?
400
Biotic Factors
What are the living aspects of the environment?
400
Competitive Exclusion Principle
What is the principle of ecology stating that two different species cannot occupy the same niche in the same place for very long?
400
Food Web
What is a diagram that represents multiple intersecting pathways through which energy and matter flow through an ecosystem?
400
Scavenger
What is a decomposer that consumers the soft tissues of dead animals?
400
run-off
What is precipitation that falls on land and flows over the surface of the ground?
500
Habitat
What is is the physical environment in which a species lives and to which it is adapted?
500
Decomposer
What is an organism that breaks down the remains of dead organisms and other organic wastes?
500
Herbivore
What is a consumer that eats producers such as plants or algae?
500
photoautotroph
What is a producer that uses energy from sunlight to make food by photosynthesis?
500
Nitrogen Fixation
What is the process of changing nitrogen gas to nitrates that is carried out by nitrogen-fixing bacteria in the soil or in the roots of legumes?
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