Biology Chapter 25

Front 1

alga

Back 1

Aquatic, plant-like organism carrying out photosunthesis and bellonging to the kingdom Protoctista

Front 2

amoeboid

Back 2

Protoctist that moves and engulfs prey with pseudopods; amoeba-like in movement

Front 3

Conjugation

Back 3

The transfer of genetic material from one cell to another

Front 4

diatom

Back 4

a freshwater or marine unicellular golden-brown alga, with a cell wall consisting of 2 silica-impregnated valves, which is extremely numerous in phytoplankton

Front 5

dinoflagellate

Back 5

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

Front 6

euglenoid

Back 6

A flagellated and flexible freshwater unicellular organism which usually contains shloroplasts and is often characterized as having both animal-like and plantlike characteristics

Front 7

phytoplankton

Back 7

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

Front 8

plankton

Back 8

freshwater and marine organisms that are suspended on or near the surface of the water

Front 9

protozoan

Back 9

Animal-like, heterotrophic, unicellular organism

Front 10

pseudopod

Back 10

cytoplankton extension of amoeboid protoctists; used for locomotion and engulfing food

Front 11

spore

Back 11

a sexual reproductive structure that is resistant to unfavorable environemtnal conditions and develops into a haploid generation

Front 12

trypanosome

Back 12

a member of a genus of parasitic zooflagellates that cause severe disease in human beings and domestic animals, including a condition called sleeping sickness

Front 13

zooflagellate

Back 13

Protozoan that moves by means of flagella

Front 14

zooplankton

Back 14

the part of plankton containing protozoa and microscopic animals