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35 Cards in this Set

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an organ that is covered by pigment in some invertebrates and protozoa and that detects changes in the quantity and quality of light
eyespot
microscopic animal organisms that drift in bodies of water worldwide; represent a basic level of feeding relationships
zooplankton
an organism that belongs to the kingdom of mostly one-celled eukaryotic organisms that are different from plants, animals, bacteria, and fungi
protist
a form of cell division that results in a number of identical individuals
multiple fission
a single-celled protist that can be aquatic or parasitic, that has organelles enclosed by a membrane, and that can move independently; examples include amoebas and paramecia
protozoa
in prokaryotes, algae, and fungi, a type of sexual reproduction in which two cells join temporarily to recombine nuclear material
conjugation
a compartment that is surrounded by a membrane in the cytoplasm of a protozoan and that contains food particles
food vacuole
a cavity or cell that contains embryos or bacteria in a resting stage
cyst
in protozoans, an organelle that accumulates water and then releases it periodically to maintain osmotic pressure
contractile vacuole
an infectious tropical disease caused by a protozoan and transmitted to humans by a mosquito; it produces high fevers, chills, sweating, and anemia
malaria
in protozoans, an organelle that accumulates water and then releases it periodically to maintain osmotic pressure
contractile vacuole
an infectious tropical disease caused by a protozoan and transmitted to humans by a mosquito; it produces high fevers, chills, sweating, and anemia
malaria
inner portion of the cytoplasm
endoplasm
a cell that is not differentiated and that develops into a gamete
gametocyte
a groove or indentation in the protoplasm of certain protozoans that has a function in the intake of food; forms food vacuoles
gullet
new spores produced in the the liver of a person infected with malarai
merozoites
the smaller, reproductive nucleus found in some protozoans
micronucleus
between the oral groove and the gullet in the paramecium
mouth pore
a disease that is caused by a sporozoan and that can cause serious harm to fetuses and newborns and flulike symptoms in adults
toxoplasmosis
a disease that is caused by an amoeba and that causes inflammation of the intestine
amoebic dysentery
a member of a group of marine protozoans that develop a siliceous skeleton that radiates from a spherical cell body
radiolarian
a depressed region around the mouth of some ciliate protozoans, such as Paramecium
oral groove
a skeletal covering that some invertebrates secrete or build
test
in protozoans, an opening from which wastes are eliminated
anal pore
a protective envelope of nonliving material that covers many protozoans
pellicle
African sleeping sickness
trypanosomiosis
the flow of cytoplasm in larger cells to facilitate the dispersion of cellular components
cytoplasmic streaming
a sporozoan that has been released from the oocyst and is ready to penetrate a new host cell
sporozoite
an order of sarcodine protozoans that have shells and are found in oceans
foraminiferan
the movement of a cell by the formation of pseudopods
ameboid movement
in many protozoans, the larger of the two types of cell nuclei
macronucleus
an illness caused by the parasitic protozoan Giardia and characterized by diarrhea
giardiasis
the outer portion of the cytoplasm that is located directly inside the cell membrane and that does not usually have organelles
ectoplsasm
a retractable, temporary cytoplasmic extension that functions in food ingestion and movement in certain amoeboid cells
pseudopodium
a disease that is caused by trypanosomes and is characterized by a swollen face on only one side, fever, and swollen spleen and liver
Chagas' disease