Question

Young one of cockroach is called-
A) Maggot
B) Nymph
C) Ephyra
D) Pupa

Answer 1

Hint:
1) Cockroach life cycle composed of three developmental phases-
Egg, Immature, Young and Mature Adult
Generally, Cockroaches are oviparous. So Cockroach lays eggs and after hatching young immature cockroaches comes out by breaking the shell of egg.

Complete Answer:
1) Maggot- Maggot is the larva of Musca sp.( fly mainly flies like housefly, cheese fly etc). Maggot turns into adult flies and starts the life cycle over.
2) Nymph - Nymph is an immature young one of Periplaneta sp. (Cockroach). Nymphs go through a series of moultings over a period of two months to one year as they develop into adult cockroaches.
3) Ephyra - Ephyra is larva of Scyphozoa sp. (jellyfish). It can swim freely and grow into adult jellyfish.
4) Pupa- Pupa is the immature life stage of Rhopalocera sp. (Butterfly). The pupa phase undergoes a metamorphosis and forms a mature butterfly.

So the correct option is (B).

Note:
i. Cockroaches lay 10-15 eggs at warm, humid and secluded spots.
ii. The sac where eggs(6-40) contains called ootheca. It can be attached with mother cockroach until deposited for hatching.
iii. German female cockroach can produce 300 eggs in a year.
iv. The skin of Nymph is very soft and White.
v. Development of adult cockroach from nymph or immature young cockroach depends on habitat( weather, climate, place etc), species of cockroach and presents of parasites around growing nymph.
vi. After moult nymphs become pale in colour and after final moult wings develop.