AP BIOLOGY

Detailed explanation-1: -Intertidal zones of rocky shorelines host sea stars, snails, seaweed, algae, and crabs. Barnacles, mussels, and kelps can survive in this environment by anchoring themselves to the rocks. Barnacles and mussels can also hold seawater in their closed shells to keep from drying out during low tide.

Detailed explanation-2: -The intertidal zone is the area where the ocean meets the land between high and low tides. A tide pool within Monterey Bay National Marine Sanctuary. Intertidal zones exist anywhere the ocean meets the land, from steep, rocky ledges to long, sloping sandy beaches and mudflats that can extend for hundreds of meters.

Detailed explanation-3: -Some examples of invertebrates found in tide pools are crabs, urchins, sea stars, sea anemones, barnacles, snails, mussels, and limpets. The intertidal is also home to marine vertebrates, some of whom prey on intertidal animals. These predators include fish, gulls, and seals.

Detailed explanation-4: -Sea stars live in the lower intertidal; they would dry out in the sun at low tide if they were in the upper parts. They can be found on rocks and in tidepools, which are holes, crevices, and depressions in rocks that trap seawater as the tide goes out.