A typical skeletal muscle cell contains approximately _____ mitochondria
A. 3
B. 30
C. 300
D. 3000
C
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Breathing muscles such as the diaphragm are controlled by neurons of the _________ nervous system
A. somatic B. autonomic C. enteric
Which of the following is NOT true of the white matter of the spinal cord?
A. Some of the white matter tracts decussate to the opposite side, either in the spinal cord or in the brainstem. B. The white matter surrounds the gray matter in the spinal cord. C. The white matter is located in columns. D. The ascending tracts of the white matter contain motor neurons. E. All of these are true of the white matter of the spinal cord.
Cardiac output is the product of _____ times _____.
A) stroke volume; total blood volume B) total blood volume; heart rate C) total blood volume; body weight D) stroke volume; heart rate
The ________ is the final product of cleavage
A) trophoblast B) blastocyst C) gastrula D) zygote