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BIOLOGY

JAMB 2016 - Question 32

Biology 2016 JAMB Past Questions - Question 32: Which of the organisms represented are notable agricultural pests

use the diagram below to answer the questions 32 and 33

Which of the organisms represented are notable agricultural pests

A: II and IV

B: I and IV

C: I and III

D: II and III

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Correct Answer

Explanation

Fig I is larva (nymph) of a grasshopper while IV is larva of a butterfly. They have powerful mandibles and maxillae with which they cut and chew leaves of crops thereby reducing their yield. Figures II and III are nymph of cockroach and pupa of mosquito respectively. Figure lI is a house hold pest while fig III pupa of mosquito does not feed on anything but undergoes internal re-organisation to become an imago (adult) within two days.