GEOLOGY

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: -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.

Detailed explanation-3: -High intertidal zone: floods during the peaks of daily high tides but remains dry for long stretches between high tides. It is inhabited by hardy sea life that can withstand pounding waves, such as barnacles, marine snails, mussels, limpets, shore crabs, and hermit crabs.

Detailed explanation-4: -Like barnacles, anemones are stuck in their places in the intertidal zone. They can’t swim or crawl to find their food, so they can’t be picky eaters. Their crowns of toxic tentacles paralyze any prey that passes by, allowing the anemone to grab them and eat them whole-even spiny sea urchins.