Choose the receptor that is not correctly matched with its function.
A. Nociceptor: transmits signals that the brain interprets as pain
B. Baroreceptor: monitors hydrostatic pressure in blood vessels
C. Proprioceptor: monitors stretch of muscle fibers
D. Peripheral chemoreceptor: monitors the pH of the cerebrospinal fluid
E. Chemoreceptor: perceives taste and smell stimuli
Answer: D
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In the 1940's, biologist Adolph Murie studied survival in Dall sheep in what is now Mount Danali National Park in Alaska
He found that Dall sheep that survive their first year of life have a high probability of surviving until they are around 9 years old; after that, they rapidly become easy prey for wolves and die at a very high rate. This pattern best fits a type ____ survivorship curve. Fill in the blank with the appropriate word.
Answer the following statements true (T) or false (F)
1. If sucrose is composed of both glucose and fructose then sucrose must be a monosaccharide. 2. Lipids and carbohydrates have similar functions insofar as they can represent a form of energy store in animals. 3. Saturated fats are composed of fatty acids with several double bonded carbons. 4. When a food label reads polyunsaturated fats, this refers to fatty acids composed of multiple double bonded carbons.
Erection occurs when
A. the spongy erectile tissue of the penis becomes engorged with blood. B. the veins flowing out of the penis vasoconstrict. C. the arteries of the penis vasodilate. D. nitric oxide is released. E. All of these events occur to promote an erection.
A new plant forms from a stem that broke off of the parent plant. This is an example of _____
a. parthenogenesis c. vegetative reproduction b. exocytosis d. nodal growth