Credit: Compassionate Eye Foundation The Image Bank Getty Images. The number of those people employed in the United States has gradually risen since September of 2010. However, the employment numbers dropped between April 2010 through September 2010 from 132 million employees down to 130 million employees.
Phytoplankton drifting about below the surface of the water still carry out photosynthesis. This process can occur as long as enough light is available for the chlorophyll and other pigments to absorb. In the ocean, light can reach as far as 200m below the surface 25.hlorophyll is not the only photosynthetic pigment found in algae and phytoplankton. There are also carotenoids,and phycobilins (biliproteins). These accessory pigments are responsible for other organism colors, such as yellow, red, blue and brown.
the ingenious size and shape help single-celled phytoplankton stay in the upper portion of ocean water where solar radiation is available which is converted to nutrients as well as expel waste materials. -phytoplankton use frictional resistance to sinking to stay afloat near the nutrient rich surface.