1.

Which of the following fish is introduced in a pond to control or eliminate the vector responsible for the transmission of malaria and elephantiasis?

A. <em>Chimaera</em>
B. <em>Scoliodon</em>
C. <em>Gambusia</em>
D. <em>Trygon</em>
Answer» D. <em>Trygon</em>


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