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Because it just doesn't happen.
it has so many plants because the plants can do photosynthesis. unlike in the deep ocean with no sunlight
Not enough light penetrates to allow photosynthesis.
Seaweed does not grow in the deep ocean because the deeper you go, the darker it gets. Without the light, plants (including marine plants) cannot perform photosynthesis, the process of turning sunlight into food.
Euphotic is referring to the sea water layer that receives sunlight for photosynthesis. The euphotic zone biomass percentage reaching the deep ocean floor is only one percent.
Respiration and fermentation which make up photosynthesis.
Life is abundant in the surface zone due to sun light is available for photosynthesis. Photosynthesis can only occur 100-200 meters down.
the ocean is deep because that is the shape of the earth and although we are not sure how deep the ocean is we do know that there is life in the deep. the ocean has made itself deep but there is really no cause that is known.
They live in the Pacific ocean, from Alaska to southern California. You'll find them at depths varying from surface - by preference rocky shores and mussel beds - to 90 meters (270 feet) deep.
The aphotic zone is permanently dark. Organisms would need to be able to manufacture and obtain food without photosynthesis.
Deep current is a movement of the ocean water. The ocean waters current is continuous.
The Pacific Ocean has the deepest point in the Challanger Deep.