Quiz Review: Interactions Among Living Things

Which describes an interaction in which two organisms that interact must use the same limited resources?

• commensalism

• parasitism

• predation

• competition

Which describes an interaction in which organisms work together so that all organisms in the group benefit?

• cooperation

• parasitism

• commensalism

• competition

Corn plants and milkweed plants grow in the same area. Over several years, the milkweed plants have taken over the field and the corn plants no longer have space to grow.

This best demonstrates which type of an interaction between the plants?

• cooperation

• parasitism

• commensalism

• competition

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Which is the best example of competition in a forest ecosystem?

• A colony of bees builds and protects a hive together.

• Ticks live and feed on deer.

• Wolves hunt and eat rabbits.

• Blue jays and finches nest in the same oak trees.

In a desert ecosystem, coyotes and rattlesnakes both eat the same type of mouse as a primary part of their diets. Recently, coyotes have been hunted and killed by people, decreasing the overall coyote population.

How will this most likely affect the rattlesnake population over time?

• It will decrease because coyotes are the prey.

• It will increase because coyotes are the prey.

• It will decrease because coyotes are the competition.

• It will increase because coyotes are the competition.

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Which is the best example of predation?

• Hookworms live in the intestines of dogs and feed on their blood.

• Barn owls often capture and eat mice that live in fields.

• A colony of termites protects the eggs laid by a queen termite.

• Two species of shellfish grow in the same shallow ocean waters.

Which best compares competition, cooperation, and predation between two organisms?

• Both organisms benefit in cooperation, but only one benefits in predation and competition.

• Both organisms benefit in cooperation and competition, but only one benefits in predation.

• Both organisms benefit in cooperation, only one benefits in predation, and neither benefit in competition.

• Both organisms benefit in competition, only one benefits in cooperation, and neither benefit in predation.

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In predation, the animal that is hunted and eaten is

.

• the host

• competitor

• prey

• parasite

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In which type of relationship do both species always benefit?

• mutualism

• symbiosis

• commensalism

• competition

A relationship in which one species benefits and the other neither benefits nor is harmed is

• mutualism

• predation

• commensalism

• competition