Which of the following is (are) forms of contraception?
A) Chemical barriers B) Intrauterine device
C) All of the above D) Rhythm method
C
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The frequency of action potentials is ______
A) the reciprocal of the interspike interval B) measured in hertz C) measured in hertz and the same as the relative refractory period D) the reciprocal of the interspike interval and measured in hertz E) the same as the relative refractory period
An ________ is composed of two or more tissues types, whereas ________ are microscopic structures in a cell.
A. organ; organelles B. organelle; molecules C. organ system; organs D. organ system; organelles E. organ; molecules
List the following structures in order from smallest to largest.(1) Muscle fiber(2) Myofilament(3) Myofibril(4) Muscle fascicle
A. 2, 1, 4, 3 B. 1, 2, 3, 4 C. 2, 3, 1, 4 D. 3, 1, 4, 2 E. 4, 2, 3, 1
Cyanide stops the production of ATP. Which of the following processes would be affected?
A. active transport B. filtration C. facilitated diffusion D. osmosis E. simple diffusion