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Holometabolous metamorphosis occurs in
A. Housefly
B. Mosquito
C. Both (A) and (B)
D. None of the above

Answer
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Hint: A major change of shape or form in an individual after hatching or birth is metamorphosis. The changes are apparently regulated by hormones called molting and juvenile hormones, which are not species-specific. Such physical changes, as well as those involving growth and differentiation, are preceded by changes in the physiology, biochemistry, and behaviour of the organism.

Complete Answer:
- Insects are among the most dramatic and extensively investigated representations of metamorphosis.
- Since development is not the same in all insects, according to the pattern of structural changes, it is convenient to group them into major categories: ametabolous, hemimetabolous, and holometabolous.
- There is simply a gradual increase in the size of the young before adult proportions are reached in ametabolous development.
- In the silverfish, springtail, and other primitive insects, this kind of creation happens. A process known as hemimetabolous metamorphosis occurs in more advanced insects (e.g., grasshoppers, termites, real bugs).
- Beetles, butterflies, moths, flies, and wasps are characterised by complete, or holometabolous metamorphosis.
- Four stages include their life cycle: embryo, larva , pupa and adult. The larva varies substantially from the adult one. It is wingless, and rather than reproduction, its shape and habits are adapted for growth and development.
- The mosquito and the butterfly, for instance, are both subject to holometabolous metamorphosis. In the larvae of butterflies, moths and beetles, this form of metamorphosis is commonly found.
- In some beetles, flies, and other insects, hypermetamorphosis, a type of complete metamorphosis, occurs and is characterised by a series of larval phases.

The correct answer is option (C) Both A and B.

Note: Holometabolous insects are about 45 percent to 60 percent of all recognised living organisms. The morphology and behaviour of each stage are adapted for various activities.
Last updated date: 02nd Jun 2023
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