Which of the following organisms is commonly found in the high-tide zone?

Crabs are commonly found in the high-tide zone due to their ability to tolerate various environmental conditions, including exposure to air when the tide recedes. This habitat is characterized by its fluctuating conditions, with crabs often utilizing the rocks and crevices to shelter from predators and drying out during low tide. They are well-adapted to these conditions, with behaviors that allow them to manage their moisture and find food even in the harsher parts of the intertidal zone.

In contrast, other organisms often prefer different zones. Sea urchins, for example, are typically found in subtidal areas where they can remain submerged for longer periods to feed on algae. Mussels also usually inhabit the mid-tide zone, where they can remain in water for more of the time, relying on the water for filter feeding. Sea stars tend to occupy the lower intertidal zone, where they can access their prey, like mollusks, more easily. Each of these organisms has specific adaptations that suit them to their preferred environments, illustrating the diversity of life in intertidal habitats.