Which of the following is eukaryotic, usually acts as a producer in its ecosystem, and spins via its flagella?
A) Dinoflagellate
B) Sporozoan
C) Cyanobacterium
D) Apicomplexan
E) Slime mold
A
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Protozoan cysts are
A. necessary for transmission to a new host. B. part of all protozoan life cycles. C. the primary form of replication. D. analogous to bacterial endospores. E. are produced by binary fission.
Each motor unit is composed of ____
a. both slow and fast aerobic muscle fibers b. both fast aerobic and anaerobic fibers c. all types of muscle fibers mixed together d. only one type muscle fiber e. both slow and fast anaerobic muscle fibers
When the cell is NOT sending signals, the electrical difference between the inside and outside of a neuronal membrane is specifically referred to as the
A. graded potential. B. action potential. C. reversal potential. D. membrane potential. E. resting potential.
A cell is in metaphase if:
a. the chromosomes are visible as threadlike structures. b. the nuclear envelope is clearly visible. c. the chromosomes are aligned at the midplane of the cell. d. the chromosome are separated into distinct groups at opposite poles of the cell. e. cytokinesis is occurring.