Ocean+Block+4B

Marine region cover about three-fourths of the earth's surface and includes oceans,coral reefs and estuataries marine algae supply much of ﻿ the worlds oxygen supply and take in huge amount of atmosphere carbon dioxide. The evaporation of the seawater provides rainwater for the land. The tempeture of the ocean water varies dependingon it's location water near the polar regions is colder than water near the equator. Algae-are photosynthesis creatures they are neither plant or animalor fungi many algae are single celled. Seaweed-Is the kingdom protista and may be long to one of several groups of multicellular. Red tide-Are associated with the production of natural toxins depletion of dissolved **oxygen or other harmful effects and are generally** described as harmful algal bloom. ocean lilly Many species of aquatic plants are invasive species. A Sting-rays tail features a poisonus barb and can swim next to diver and snorklers without being frightened. Nurse sharks prefer to dwell near the sea floor in the warm shallow water of the western atlantic. Jellyfish do not have a brains they have a complex network of nerves which responds to thing but they can not think about things tuna are saltwater fish unlike most fish have white fleshand we eat tuna with crackers and alot more.