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Subject Area - 4:
Environment and Ecology
Environment and Ecology
- Standard Area - 4.1: Ecology
- Grade Level - 4.1.7: GRADE 7
Standard - 4.1.7.B
Explain biogeochemical cycles within an ecosystem.
Additionally, define basic features of the rock cycle. Describe the layers of the earth. Differentiate among the mechanisms by which heat is transferred through the Earth’s system.
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Assessment Anchor - BIO.B.4
Ecology
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Anchor Descriptor - BIO.B.4.1
Describe ecological levels of organization in the biosphere.
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Eligible Content - BIO.B.4.1.1 Describe the levels of ecological organization (i.e., organism, population, community, ecosystem, biome, biosphere).
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Eligible Content - BIO.B.4.1.2 Describe characteristic biotic and abiotic components of aquatic and terrestrial ecosystems.
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Anchor Descriptor - BIO.B.4.2
Describe interactions and relationships in an ecosystem.
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Eligible Content - BIO.B.4.2.1 Describe how energy flows through an ecosystem (e.g., food chains, food webs, energy pyramids).
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Eligible Content - BIO.B.4.2.2 Describe biotic interactions in an ecosystem (e.g., competition, predation, symbiosis).
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Eligible Content - BIO.B.4.2.3 Describe how matter recycles through an ecosystem (i.e., water cycle, carbon cycle, oxygen cycle, nitrogen cycle).
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Eligible Content - BIO.B.4.2.4 Describe how ecosystems change in response to natural and human disturbances (e.g., climate changes, introduction of nonnative species, pollution, fires).
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Eligible Content - BIO.B.4.2.5 Describe the effects of limiting factors on population dynamics and potential species extinction.
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