Answers NC-Earth Environmental Science LB Biomes — Unit testQuestion 19

19

QuizMultiple Choice

Biomes — Unit test

Question 19 • NC-Earth Environmental Science LB

Which is the best example of commensalism?

Answer

A

Honey bees feed on the pollen of cornflowers and help the flowers reproduce.

B

Barnacles ride on a gray whale’s back to obtain food, and the whale is not harmed.

C

Squirrels and chipmunks eat the same nuts in a forest where food is scarce.

D

Prairie dogs often collect and eat food in groups so they are better protected from enemies.

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