AP Environmental Science / Unit 1: The Living World: Ecosystems
1.1 Introduction to Ecosystems
Notes
An ecosystem is all the living (biotic) and nonliving (abiotic) parts of an area interacting.
- Competition for resources; predation, mutualism, commensalism, parasitism.
- Resource partitioning: species divide a resource (by time, space or type) to reduce competition.
Practice
Two warbler species feed in different parts of the same tree. This is:
Dividing the resource reduces competition.
Which is an abiotic factor?
Nonliving.
Clownfish and sea anemones help each other. This is:
Both benefit.
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