Which of the following is most life threatening?
A. Ventricular flutter
B. Ventricular fibrillation
C. Atrial flutter
D. Atrial fibrillation
Answer: B
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During meiosis I, maternal and paternal chromosomes come together during the process called ________ to form a ________
A) synapsis; chromatid B) prophase I; chromatid C) synapsis; spermatid D) metaphase II; tetrad E) synapsis; tetrad
As a neuron's refractory period ends, its sodium channels are changing from
A. their resting state to their inactivated state. B. their inactivated state to their resting state. C. their resting state to their activated state. D. their activated state to their resting state.
Which of the following is a characteristic of smooth muscle?
A. Intercalated discs connect adjacent cells B. Found in the walls of the digestive tract C. Attached to the skeleton by tendons D. Fibers are striated in appearance
What are the characteristics of an RNA molecule?
What will be an ideal response?