Chapter 4 Ecosystems and Communities.pptx

These organisms secrete hard exoskeletons made of

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These organisms secrete hard exoskeletons made of calcium bicarbonate that make up the hard, stone like base of the re ef This is the home to many coral polyps, sponges and algae Coral polyps use photosynthesis During the day to make their own food Coral polyps also have stinging tentacles to help them capture zooplankton
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ZONES OF MARINE ECOSYSTEMS 2 Main Divisions Based on Light Photic 200 m photosynthesis Aphotic Permanent darkness chemosynthesis Depth/Distance Divisions Intertidal Zone Rocky zonation Coastal Ocean/neritic Low tide mark to outer edge of continental shelf Open Ocean/pelagic Edge of continental shelf and outward 500m to 11000m Largest division Benthic Zone Ocean floor Attached organisms…
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