Interactions Unit 1 Review

Competition occurs when organisms try to use the same limited resource.

• true

• false

Biomes are characterized by temperature, precipitation, and the plant and animal communities that live there.

• true

• false

A habitat is the role of a population in its community, including its environment and its relationship with other species.

• true

• false

A food chain is the feeding relationships among all of the organisms in an ecosystem.

• true

• false

A limiting factor is an environmental factor that increases the growth of a population.

• true

• false

A small fish called a cleaner wrasse darts in and out of a larger fish's mouth, removing and eating parasites and dead tissue. Which term best describes the relationship between the cleaner wrasse and the large fish?

• mutualism

• commensalism

• parasitism

• competition

Bees have a society in which different members have different responsibilities. The interaction among bees is an example of what type of behavior?

• cooperation

• competition

• consumerism

• commensalism

After a mild winter with plenty of food, a deer population grew rapidly. What most likely happened to the wolf population in that same ecosystem?

• It was unaffected.

• It grew.

• It shrank.

• It became extinct.

Which is an example of an abiotic factor?

• snails

• water

• crab

• tree roots

Which of the following is an example of a biotic limiting factor for a population?

• water availability

• climate

• disease

• natural disasters