Intertidal zones Welcome to BFSU: › Forums › Volume Three › Learning Progression D. Earth and Space Science (overview) › Lesson D-14. The Moon and Its Phases, and Tides › Intertidal zones This topic has 0 replies, 1 voice, and was last updated 5 years, 2 months ago by Bernard Nebel. Viewing 0 reply threads Author Posts August 27, 2019 at 8:07 pm #7922 Bernard NebelKeymaster Intertidal zones, shorelines coved at high tide but drained at low tide are among richest areas on earth for biological diversity. See photographs by typing into your browser: intertidal ecosystems images/ Also: tidal wetland ecosystems images Pursue further study of such areas as you wish. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.