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.

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.