Question

59. A is an insect which looks like a butterfly. A is not formed as such from its eggs directly. The hatching of
eggs produces a stage called B or C, and then an encased form D which ultimately forms insect A. The
worm-like stage B or C is also known by a yet another name E. The stage E is important because it leads to
the formation of an important fibre F.
(a) Name the insect A.
(b) What are stages (1) B (ii) C (ii) D, and (iv) E known as ?
(c) Name the fibre F.
(d) Name the tree on whose leaves E feed.​

Answer 1

Answer:

A is an insect which looks like a butterfly. A is not formed as such from its eggs directly. The hatching of eggs produces a stage called B or C, and then an encased form D which ultimately forms insect A. The worm-like stage B or C is also known by a yet another name E. The stage E is important because it leads to the formation of an important fiber F.

Explanation:

Silk is a natural fiber which is obtained from silk moth. Silk Moth's life history plays an important role in obtaining silk.

• (a) Name the insect A.
• answer- name of the insect is Silk Moth.
• (b) What are stages (1) B (ii) C (ii) D, and (iv) E known as ?
• answer- A Silk Moth is not formed as such from its eggs directly, the hatching of eggs produces a stage called B: Larva or C: Caterpillar, and then an encased from D: Pupa which ultimately forms insect A: Silk Moth.
• (c) Name the fiber F.
• answer- the name of the fiber is Silk.
• (d) Name the tree on whose leaves E feed.​
• answer- Silk worm only eat fresh mulberry leaves or (artificial food).

White mulberry native to Asia but long cultivated in southern Europe, is so called because of the white fruits is bears; its leaves are used as food for silkworm.