Question

Intertidal organisms from exposed areas sometimes have thicker shells than their counterparts from less exposed areas. This is thought to be an adaptation to

a) Increased predation
b) Harsh weather conditions
c) Limited resources
d) Wave impact

Answer 1

Intertidal organisms from exposed areas have thicker shells as an adaptation to wave impact, protecting them from physical forces and drying out.

Step-by-step explanation:

Intertidal organisms from exposed areas sometimes have thicker shells than their counterparts from less exposed areas. This is thought to be an adaptation primarily to wave impact. Organisms in the intertidal zone, which is the area between high and low tide, face a highly variable environment, including exposure to air, sunlight, and dry periods. Additionally, they endure the pounding action of waves. The thick shells serve as a protective exoskeleton, shielding them from desiccation (drying out) and the physical force of the waves. To exemplify, the shore crab, Carcinus maenas, has a robust exoskeleton for such protection. In contrast, adaptations for increased predation, harsh weather conditions, or limited resources might not specifically necessitate a thicker shell.