Because it is too dark for photosynthesis to occur at these depths
What is kinosynthesis
Plant photosynthesis is the primary source of nutrients in every ecosystem. Deep in the ocean, where little or no sunlight is present, photosynthesis is impossible. Thus, organisms in deep water ecosystems depend on detritus (discarded waste) and other organic matter that drifts down from (and is generated) nearer to the surface, or on species that migrate back and forth.
Archaea bacteria has a similar cell organization to regular bacteria. They are simple, single cell organisms. Like other bacteria, they have no cell nucleus. They are around 5 micro meters long.
Protozoa can be 0.01 mm to 1.0 mm in length.*The exact classification and definition of Protozoa has been changing, and should not be confused with Protists. Traditional classification states Protists as one of the five kingdoms; this kingdom is then broken down into the two subkingdoms of Protozoa and Algae. Modern classification generally uses the terms Protozoa and Algae as convenient ways to refer to an organism's characteristics rather than official taxonomic categories.-Protozoa includes heterotrophic organisms (animal-like protists) that are unicellular and usually mobile by their own means. Good examples include Amoebas, Paramecia, and Trypanosomes.-Algae includes photosynthetic Protists (plant-like or autotrophic protists), they can be multi-celled or single-celled. Multi-cellular structures can reach over 300 feet (100 meters) in length; a good example would be kelp.
0.00001276 meters in Scientific Notation = 1.276 x 10-5 meters.
108m3
because it is too cold
9,842.5 ft or 3,000 meters
Lemon Sole
The porpoise can dive to depths of 200 meters. However, they tend to stay in shallow coastal regions to hunt.
Below that they don't get much light, which they need for energy.
Depths. The Mariana Trench is the deepest trench ,Its depth has been measured at 36,201 feet (11,034 meters)
The Sea of Japan has depths of more than 3,050 meters (10,000 feet), while the Yellow Sea has a greatest depth of only about 80 meters (250 feet).
The calcareous tubeworm is a marine worm. It is commonly found in the intertidal zone, but may live at depths up to 100 meters.
The biosphere is all around you. It is the part of the earth and atmosphere that contains life. It goes from the depths of the ocean to thousands of meters high in the atmosphere.
Algae depend on sunlight to carry out photosynthesis. There is not enough sunlight below 200 meters.
Redwood trees are one species.
Glass sponges generally live at water depths ranging from 1480 to 3000 ft. (450 to 900 meters).However, there is one species of glass sponge Oopsacas Minuta which has been found at much shallower depths, and there have been other glass sponge species which have been found at much deeper depths.