OCS 1005 : Marine Animals Study Guide
15 Mar 2019
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Animals- multicellular organisms incapable of synthesizing their own food. from other organisms, unable to synthesize their own food. Introducing the invertebrates (no backbone) plankton and organic food particles from surrounding waters catch prey. Some have 3-meter diameter of bell and 18 meter tentacles. Sea wasp (jellyfish) can kill a man in 3 minutes substrate. First animals in our society that possess a. Sea anemones- slide slowly on substrate (no skeleton). Worm phyla flow-through digestive system (mouth and anus) colored. Sea stars: star shaped, tube feet act as suction. *exoskeleton- made of chitin, like a suit of armor, must shed for growth. Echinodermata phylum dollars, sea cucumbers cups, work with water vascular system to open clams or mussels. True bone is absent teeth shark is the largest maintain buoyancy containing dissolved oxygen into bloodstream and removes excess co2 from blood to seawater directions which increases transfer efficiency. eliminate excess salt through salt secreting cells in the gills.
