Physiological methods of either producing or retaining body heat include
A) shivering.
B) a reduced metabolic rate.
C) vasodilation.
D) avoiding physical activity.
E) sweating.
Correct Answer:
Verified
Q2: Studies have shown that UV radiation rapidly
Q3: Hypoxia
A)is the reduced availability of oxygen.
B)occurs at
Q4: Dark skin is advantageous in the tropics
Q5: Adaptation is
A)seen only in nonhuman animals.
B)the same
Q6: Ultraviolet radiation can be an important factor
Q8: Mechanisms for radiating body heat include
A)increased production
Q9: Which is true of populations living at
Q10: Which of the following absorbs ultraviolet radiation?
A)Carotene
B)Hemoglobin
C)Vitamin
Q11: Sweating
A)is a uniquely human ability.
B)has no detrimental
Q12: The folate hypothesis
A)contradicts the importance of the
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