All viruses use the host cell's nucleic acid polymerases for replication.
Answer the following statement true (T) or false (F)
False
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The composition of the normal microbiota may be affected by
A. hormonal changes. B. use of antibiotics. C. obesity level. D. diet. E. All of the choices are correct.
Which of the following traits is not characteristic of arthropods?
a. jointed appendages b. hardened exoskeleton c. specialized developmental stages d. lack segmentation
Match the axoneme structure with its characteristic
A) links adjacent doublets B) generates force to slide microtubules past one another C) complete 13 protofilament microtubule D) project inward at each doublet E) incomplete 10–11 protofilament microtubule 1) A tubule 2) B tubule 3) sidearms 4) radial spokes 5) nexin
The phase at the end of an action potential when the membrane potential becomes more negative than it is at rest is the ________ phase
A) threshold B) depolarizing C) repolarizing D) hyperpolarizing E) refractory