Chapter 3 Review - Interactions in Ecosystems

The living things in an ecosystem.

• biotic factors

• abiotic factors

A(n) _______ is a diagram that shows the amount of energy available at each levle of an ecosystem.

• food chain

• food web

• energy web

• energy pyramid

A place where an organism lives and hunts is called a(n)

• population

• niche

• habitat

• ecosystem

___________ is a relationship between two or more kinds of organisms that lasts over time.

• competition

• symbiosis

• predation

• niche

A characteristic that helps an organism survive in its environment is a(n) _______________

• adaptation

• niche

• habitat

• symbiosis

A(n) ________________ includes all living and nonliving things in an environment.

• population

• community

• ecosystem

• niche

Rocks, water, and sun are examples of:

• biotic factors

• abiotic factors

Energy and nutrients flow in one direction in a(n) ________.

• food chain

• food web

• energy chain

• energy pyramid

The specific role or job an organism plays in a community is its ________________.

• adaptation

• habitat

• symbiosis

• niche

The fight for resources between organisms is called _________.

• symbiosis

• predation

• competition

• adaptation