Semester 1 Science Vocabulary Assessment

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Heterotrophs

Back

Organisms that cannot produce their own food and must consume other organisms for energy.

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Energy Pyramid

Back

A model that illustrates how energy decreases at each trophic level in an ecosystem.

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Watershed

Back

A land area that channels rainfall and snowmelt to creeks, streams, rivers, and eventually to outflow points like oceans.

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Artificial Selection

Back

The process by which humans breed specific organisms for desired traits.

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Plantae

Back

The kingdom of multicellular, photosynthetic autotrophs that have cell walls.

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Trophic Level

Back

Each step in a food chain or food web, representing the flow of energy and nutrients.

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Autotrophs

Back

Organisms that can produce their own food through photosynthesis or chemosynthesis.

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Photosynthesis

Back

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

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Ecosystem

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A community of living organisms interacting with their physical environment.

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Biomass

Back

The total mass of living matter within a given area or volume.