Hiv shows a high degree of variability because:
a. hiv is derived from many different strains of monkey viruses
b. hiv has been infecting humans for a long time
c. prolonged use of anti-hiv drugs results in resistance
d. the enzyme responsible for copying the genetic information of hiv from rna to dna is
error prone
e. all of above
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Ответ:
The answer is B
Explanation:
It is B because of how about 10% of the energy is lost each time the energy is passed to the next organism.