Consider a tadpole becoming a toad. You would expect to find it changing its form of nitrogenous waste from
A. ammonia to urea.
B. urea to ammonia.
C. uric acid to urea.
D. urea to uric acid.
E. uric acid to ammonia.
A. ammonia to urea.
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Which of the following is false regarding sudden
infant death syndrome (SIDS)? a. It may have a heritable basis. b. It is a type of apnea. c. Infants who sleep on their stomachs are more vulnerable to it. d. Infants of women who smoke or who are exposed to smoke during pregnancy are more susceptible to it. e. It is linked to gene mutations that cause irregular heart beat.
Which of the following statements about human population in industrialized countries is incorrect?
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If 16% of the nucleotides in one strand of a DNA molecule contain the base G, what percent of the nucleotides on the complementary strand will also contain the base G?
A. 34% B. 8% C. 32% D. 16% E. Impossible to determine from the information given.