Picoplankton is the fraction of plankton composed by cells between 0.2 and 2 μm that can be either : This article or section does not cite its references or sources. ... Cells in culture, stained for keratin (red) and DNA (green). ...
Some species can also be mixotrophic. Leaf. ... A heterotroph (Greek heteron = (an)other and trophe = nutrition) is an organism that requires organic substrates to get its carbon for growth and development. ... The term mixotrophic can describe organisms (usually algae or bacteria) capable of deriving metabolic energy both from photosynthesis and from external energy sources. ...
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