Marine Biology: An Introduction to Ocean Ecosystems |
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Page 22
... sand and dunes . On the east and gulf coasts of the United States , where the continental shelf is large , wave action readily forms sand . This sand can build as a large bar offshore , which eventually rises above the waves . Grasses ...
... sand and dunes . On the east and gulf coasts of the United States , where the continental shelf is large , wave action readily forms sand . This sand can build as a large bar offshore , which eventually rises above the waves . Grasses ...
Page 42
... Sand crabs burrowing in the moist sand serve as prey to many species of shore birds . Ghost crabs scurry about on the dry sand , finding that a nocturnal , scavenging lifestyle on the darkened beaches suits their shy natures . Dwelling ...
... Sand crabs burrowing in the moist sand serve as prey to many species of shore birds . Ghost crabs scurry about on the dry sand , finding that a nocturnal , scavenging lifestyle on the darkened beaches suits their shy natures . Dwelling ...
Page 43
... sand . Using her flipperlike forelimbs , which have been modified for sea life , the female pulls herself up the beach and digs the nest three feet into the cool moist sand . She must be careful to choose a nest site above the high tide ...
... sand . Using her flipperlike forelimbs , which have been modified for sea life , the female pulls herself up the beach and digs the nest three feet into the cool moist sand . She must be careful to choose a nest site above the high tide ...
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abyss adult algae allow anemones animals Arctic areas behavior biologists birds body burrow camouflaged chicks cleaner wrasse coast coastal color continental coral reef crabs earth eggs estuaries evolved Explain your answer feed feet female filter fishermen form of symbiosis grass gray whales grow habitat hatch high tide huge humans hunting hydroids invertebrates kelp forest kelp plant known lagoons land living things low tide male manatee marine habitats marine mammals mating mouth move mussels nest nudibranchs nutrients ocean orcas organisms oxygen pelagic zone penguin phylum phytoplankton pinnipeds plankton polar bears polar seas polychaete population predators prey protection remain rock rocky shores sand sandy beaches sea floor sea hare sea lions sea otters sea star sea turtle seal sediment sharks shell shelter shrimp small fish species sperm sponges squid structure subtidal soft bottoms surface swimming temperature tentacles tide pools tiny toothed whales warm worms young zooplankton zooxanthellae