Cells (biology)

A cell is the basic structural, functional, and biological unit of all known living organisms that can replicate independently. Cells fall into one of two broad categories: prokaryotic and eukaryotic. Only the predominantly single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes (pro- = “before”; -kary- = “nucleus”). Cells of animals, plants, fungi, and protists are all eukaryotes (ceu- … Leggi tuttoCells (biology)

Phytoplankton

Phytoplankton are photosynthesizing, microscopic, autotrophic (self-feeding) components of the plankton community; plant-like marine organisms that live in watery environments, both salty and fresh. Phytoplankton form the center of the marine food web, serving as the primary food source for zooplankton, shellfish, fish, and larger marine creatures that consume them both. They are critical to the global carbon cycle, … Leggi tuttoPhytoplankton