Ultraviolet radiation can be an important factor in selection for increased melanin production because UV radiation can cause
A) rickets.
B) albinism.
C) skin cancer.
D) the destruction of foliage.
E) drought.
Correct Answer:
Verified
Q1: Rickets is caused by
A)overexposure to ultraviolet radiation.
B)too
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
Q7: Physiological methods of either producing or retaining
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
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