New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Which one of the following statements is incorrect about

    the desert locusts?
    A They belong to the family called Acrididae Correct Answer Incorrect Answer
    B The life cycle comprises of four stages, i.e. egg, caterpillar, pupa and adult Correct Answer Incorrect Answer
    C The adult can consume the food equal to its body weight in a day Correct Answer Incorrect Answer
    D solitary adults are brown whereas gregarious adults are pink (immature) and yellow (mature) Correct Answer Incorrect Answer

    Solution

    The life cycle comprises three stages: egg, hopper and adult. Eggs hatch in about two weeks (the range is 10-65 days), hoppers develop in five to six stages over a period of about 30-40 days, and adults mature in about three weeks to nine months but more frequently from two to four months.

    Practice Next