dinoflagellates A division (Dinoflagellata) of protists that are heterotrophs but closely allied to brown algae and diatoms (they are sometimes classified as algae). Many have brown or yellow …

May 29, 2018 · Red tide Red tide is the common name for phenomenon created when toxic algal blooms turn seawater red, killing marine life and making water unsuitable for human or animal use. …

Jun 27, 2018 · Pyrrophyta are mostly unicellular microorganic Protists divided by botanists in two phyla, dinoflagellates and criptomonads. The taxonomic classification of Pyrrophyta is disputed by some …

Pfiesteria Pfiesteria piscicida (fee-STEER-ee-uh pis-kuh-SEED-uh) is a microscopic, polymorphic organism that belongs to a group of single-celled, free-swimming phytoplankton called …

Jun 27, 2018 · Endosymbiosis Once considered a relative rarity, endosymbiosis, the living together of one organism inside another, has increasingly become recognized as a major factor in the evolution …

Dinoflagellida (Dinophyceae, Pyrrophyta, dinoflagellates; subphylum Sarcomastigophora, superclass Mastigophora) An order of protozoons that are heterotrophs Source for information on Dinoflagellida: …

These symbionts are usually dinoflagellates, called "zooxanthellae"; however, green algae symbionts ("zoochlorellae") are also known. Most shallow-water, reef-building corals contain zooxanthellae, and …

Jun 27, 2018 · Protista (Protoctista) A kingdom in the domain Eucaryota that comprises single-celled, eukaryotic organisms (see eukaryote) that may resemble animals or plants. Naked and shelled …

Jun 11, 2018 · Dinoflagellates. Dinoflagellates are unicellular algae with armor made of cellulose and flagella that cause them to spin as they swim. Dinoflagellates are found in both freshwater and …

May 8, 2018 · Dinophyceae A class of Pyrrophyta, comprising algae that are unicellular and have two flagella (thread-like structures) of unequal length. Most dinoflagellates belong to this class and the …