Ecology Review Quiz

What type of relationship between organisms is one in which one organism benefits and the other is not affected?

• predation

• parasitism

• commensalism

• mutualism

What is a niche?

• the range of tolerance an organism has

• the location where an organism lives

• the first trophic level of a food chain

• the role an organism plays in its environment

Which of the following refers to a community of living organisms and the way they interact with nonliving parts of their environment?

• trophic

• biome

• habitat

• ecosystem

If a prey species becomes extinct, what else is most likely to happen?

• The climate the species lived in will change.

• The plants the species ate will also go extinct.

• The predators that eat the prey may be threatened.

• The habitats that the species lived in will be threatened.

Which example shows a relationship between a living thing and a non-living thing?

• An insect is food for salmon.
• Water carries a rock downstream.
• A tree gets nutrients from the soil.
• A flower makes food for a butterfly.

Nonliving parts of an ecosystem are called

• abiotic factors
• biotic factors
• rocks and dirt
• funiture

Living parts of an ecosystem are called

• biotic factors
• abiotic factors
• crazy critters
• animals and plants

Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest.

• Extinction
• Speciation
• Natural Selection
• Artificial Selection

Another term for Natural Selection is:

• Breeding

• Commensulism

• Communism

• Survival of the fittest

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation