Grayce P. Storey
Some factors that affect ocean organisms are sunlight, temperature, water pressure, and water movement, and because of these factors the ocean can be divided into four zones. Each zone will contain organisms adapted to the conditions.
Most marine organisms live near the surface or shore. Many attach themselves to rock while others may borough into the sand. Along the shore you may find clams, barnacles and sea stars.
Past the low tide line you can find microscopic plants (phytoplankton), living near the surface in order to receive sunlight which aids in food production. Almost all the animals in the ocean depend either directly or indirectly on phytoplankton for food.