Write a hypothesis about the effect of a strong odor on earthworm behavior. Use the "if . . . then . . .
because . . . ” format, and be sure to answer the lesson question, "How is earthworm behavior affected by external stimuli?”

If an earthworm is exposed to a strong odor, then it will back away from the odor because it will think that the odor is a sign of danger.

Explanation: It relates the worm to danger and they have to move away from danger or else they will get eaten.

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