kelp,Brown algae seaweed; used for food in China and Japan; burned to produce iodine. kidney,Paired organs in vertebrates that extract nitrogenous wastes from the blood for elimination. L Lacteal,Small lymph vessel in the center of each villus; absorbs digested fats from the small intestines. ...
Diatoms are unicellular algae and important primary producers. The process of carbon fixation in diatoms is very efficient even though the availability of dissolved CO2in sea water is very low. The operation of a carbon concentrating mechanism (CCM) also makes the more abundant bicarbonate accessible...