Which of the following pH levels of water is alkaline?
a. 7.5 c. 1.0
b. 4.0 d. 6.5
A
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In the absence of light, there is movement of Na+ in the photoreceptors causing a depolarization. This is called the ________.
A. dark current B. visual cycle of retinal C. dark adaptation D. bleaching reaction
The primary reason males have a higher hematocrit than females is because
A) males have more skeletal muscle. B) males have larger livers. C) males have longer blood vessels. D) males have fewer white blood cells. E) males have androgens.
Gastric mixing is
a. primarily in the body of the stomach b. a result of the stomach's contents being tumbled back and forth in the fundus c. able to combine food and gastric secretions to form a liquid known as chyme d. both a and b e. all of the above
Which lymphatic structure is located on the cecum?
A) Spleen B) Adenoid C) Lacteal D) Appendix