Change: Zone:Zone: a permanently dark zone below the photic zone where light cannot penetrate. Any producers in this zone are chemosynthetic autotrophs. Intertidal Zone: the area along coast lines that is exposed during low tides, but covered with water during high tides. Coastal Ocean: the area   View changes from previous version. (Word count: 131)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 131)

Change: the area extending from the low-tide line to the edge of the continental shelf which is usually w/i the photic zone. Coral Reef: areas in warm shallow waters that produce structures made from the calcium carbonated skeletons of coral animals. Open Ocean: the area from the   View changes from previous version. (Word count: 131)

Change: Photic Zone: the top zone of the ocean where sunlight can penetrate and photosynthetic producers like algae can be found   View changes from previous version. (Word count: 20)