How many liters of water does an average human need to replace each day by consuming food or drink?
A) 1
B) 2
C) 3
D) 4
C
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Answer the following statements true (T) or false (F)
1. Rods and cones, like most sensory receptors, depolarize open receiving a stimulus. 2. Perception of salty tastes occurs at the level of the taste bud. 3. Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation. 4. The most common defect in color vision, termed red-green color blindness, results from a faulty opsin gene. 5. Compound eyes in invertebrate animals are composed of many smaller ommatidia.
A "nucleus" is the name for both the spherical center of a cell and:
A) the gaps between the segments of myelin B) the last cranial nerve C) a collection of cell bodies D) the basal ganglia
Insulin ________ blood glucose, whereas glucagon ________ blood glucose
A) makes; destroys B) does not affect; controls C) controls; does not affect D) decreases; increases E) increases; decreases
Louis Pasteur demonstrated that fermentation to produce alcohol is caused by
A) aerobes. B) facultative anaerobes. C) obligate parasites. D) archaea. E) prokaryotes.