31. Which of the following questions about the South American and African weakly electric fish does the passage NOT directly answer?
Your Answer is
Correct Answer is B
Explanation
Item B: Not mentioned in the original text.
A item: lines24-26, the function is to collect information.
Item C: lines 42-50, describes the various functions of voltmeters.
Item D: lines 61-65, because their bodies are hard and cannot bend or turn.