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14 Cards in this Set

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alga
Aquatic, plant-like organism carrying out photosunthesis and bellonging to the kingdom Protoctista
amoeboid
Protoctist that moves and engulfs prey with pseudopods; amoeba-like in movement
Conjugation
The transfer of genetic material from one cell to another
diatom
a freshwater or marine unicellular golden-brown alga, with a cell wall consisting of 2 silica-impregnated valves, which is extremely numerous in phytoplankton
dinoflagellate
A unicellular alga, with 2 flagella, one whiplash and the other located within the groove between protective cellulose plates, whose numbers periodically explode to cause a toxic "red tide" in ocean waters
euglenoid
A flagellated and flexible freshwater unicellular organism which usually contains shloroplasts and is often characterized as having both animal-like and plantlike characteristics
phytoplankton
The part of plankton containing organisms that 1) photosynthesize and produce much of the oxygen in the atmosphere and 2) serve as food producers in aquatic ecosystems
plankton
freshwater and marine organisms that are suspended on or near the surface of the water
protozoan
Animal-like, heterotrophic, unicellular organism
pseudopod
cytoplankton extension of amoeboid protoctists; used for locomotion and engulfing food
spore
a sexual reproductive structure that is resistant to unfavorable environemtnal conditions and develops into a haploid generation
trypanosome
a member of a genus of parasitic zooflagellates that cause severe disease in human beings and domestic animals, including a condition called sleeping sickness
zooflagellate
Protozoan that moves by means of flagella
zooplankton
the part of plankton containing protozoa and microscopic animals