Ecosystem Basics Review

A group of organisms of the same species living together is called

• ecosystem

• biosphere

• population

• community

Multiply populations of different species living together make a/an

• ecosystem

• biosphere

• organism

• community

Communities of living organisms interacting with nonliving components in an environment make up

• biosphere

• ecosystem

• population

• community

All of the ecosystems on Earth make up the

• ecosystem

• biosphere

• community

• population

ALL of the following are biotic factors in an ecosystem EXCEPT

• plants

• bacteria

• sunlight

• animals

All of the following are abiotic components of an ecosystem EXCEPT

• water

• buildings

• producers

• temperature

Which is a CORRECT example of a food chain?

• Plants uses CO₂ and water to produce glucose.

• Solar radiation warming the Earth's atmosphere to sustain life.

• Plants and algae produces oxygen, which is inhaled by animals.

• Decayed plants eaten by worms; worms eaten by birds, which is eaten by eagles.

If a predator's population increases, the prey's population will likely to

• increase

• decrease

• remains the same

• increases then decreases

If the prey's population increases, the predator's population will likely to

• increase

• decrease

• remains the same

• increase then decreases

Rank the terms from biggest to smallest

1. community 2. biosphere 3. ecosystem 4. organism

5. population

• 1,2,3,4,5

• 5,4,3,2,1

• 2,3,1,5,4

• 3,2,1,5,4