An ecosystem is a natural unit consisting of all the living organisms and nonliving physical factors in an area.
CK-12 (High School)
How do organisms interact with the living and non-living environment to obtain what they need to survive?
HS-LS2-6 - Changing Conditions, RST.1 - Analysis & Evidence, RST.4 - Key Terms
DEPTH OF KNOWLEDGE (DOK) LEVELS:
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