The oceans and seas on our maps are actually united into one enormous, interconnected ecosystem. However, each type of marine organism has certain needs that restrict it to a particular region or zone. Discover those needs as they apply to the intertidal zone, the second major zone of the ocean, the region above the continental shelf and the continental shelf.
Part of the Aquatic Ecosystems series produced by Partridge TV & Video, Ltd.
Grade Levels: 7 to Adult