17. What group of organisms generally have soft bodies protected by hard shells, and include octopuses, clams, oysters, squids, and snails? -crustaceans
-shoals
-fish
-mollusks

The answer is Mollusks.

Explanation:

No very sure how to explain but there is the answer. :)

the answer to the question is punishment. or more specifically, positive punishment.

positive punishment occurs when a behavior is given a negative consequence for the individual doing the behavior.

sara no longer wants to ask questions (the behavior) because she is ridiculed by mr. smith (the punishment).

reinforcement is inaccurate because reinforcement always gives positive consequences for the individual doing the behavior, be it by introducing a pleasant consequence or removing an unpleasant one.