Question

Match the following (w.r.t type of metamorphosis involved).

Column I	Column II
a) Paurometabolous	i) Silkworm
b) Hemimetabolous	ii) Grasshopper
c) Hemimetabolous	iii) Silverfish
d) Ametabolous	iv) Dragon fly

A. a(ii), b(iv), c(i), d(iii)
B. a(i), b(iii), c(iv), d(ii)
C. a(ii), b(iii), c(i), d(iv)
D. a(ii), b(iv), c(iii). d(i)

Answer 1

With a few rare exceptions, in the form of an egg, all insect life starts. An insect must develop after quitting its egg and undergo a series of physical changes before reaching adulthood. Metamorphosis is called the transformative transitions that an insect goes through as it shifts from one stage of the life cycle to the next. Although only 10% of insects undergo what is termed "incomplete metamorphosis".

Complete answer:
First we should know about metamorphosis to answer this question. Metamorphosis is a mechanism in which some time after birth, animals experience severe, rapid physical changes. A change in the entire body plan of the organism, such as a change in the number of legs of the animal, its means of feeding or its means of breathing, can result from metamorphosis.
Now, let us find the solution-
Paurometabolous metamorphosis is marked by incremental growth from the immature stage i.e. from the nymph stage to the adult stage. Grasshopper is an example. Therefore, (a) match with (ii)
Hemimetabolous metamorphosis is defined as incomplete metamorphosis since it comprises 3 stages of development and does not include the pupal stage: egg, nymph, and adult. Dragonfly is an example. Therefore, (b) match with (iv).
Complete metamorphosis is termed holometabolous metamorphosis since it comprises all four stages of growth-egg, nymph, pupa, and adult stages. Silkworm is an example. Therefore, (c) matches with (i).
Ametabolous development refers to the process of development in which the immature stages are very close to adults and there is no metamorphosis. Silverfish is an example. Therefore, (d) match with (iii).

Hence, the correct answer is option (A)

Note: In arthropods, a larva is a motile, premature feeding stage that is morphologically distinct from the adult stage. The hemimetabolous insect larvae are called nymphs. The holometabolous insects' adult stage is known as imago.