Question

the crab is a natural predator of the snail. over time, snails have developed thicker shells to counteract the crab claws. which adaptation for shell thickness would natural selection reinforce in random snails to ensure protection against piercing by crab claws? no adaption thicker shells thinner shells

Explanation:

Step1: Understand natural selection

Natural selection favors traits that enhance survival.

Step2: Analyze snail - crab interaction

Crabs are predators. Thicker shells offer better protection.

Step3: Determine the favored adaptation

Natural selection will reinforce thicker shells for protection.

Answer:

B. Thicker Shells