Question

Immature stage of housefly is
A. Caterpillar
B. Nymph
C. Grub
D. Maggot

Answer 1

Hint: The life cycle of the housefly begins with the Egg stage and the female housefly is capable of laying 150 eggs per one batch and it generally produces 5 to 6 batches of eggs within a few days.

Complete answer:
Among all the insects, houseflies are commonly seen and it commonly develops by a process called metamorphosis.
The life cycle of the housefly has four stages.
This stage moves from eggs to larval forms, and from larva into pupae and then into adults.
Even though it has a good capability to produce eggs, the lifespan of a housefly is very short.
The life cycle of a fly begins with eggs, usually these eggs hatch by the time of 8 to 20 hours.
Once all of these eggs hatch they enter the first larval stage called maggots, it is said to be the immature larval stage of a housefly.
Before reaching to other stages the maggots, molt or shed the layer.
From maggots to another stage it reaches three days and from it enters the pupae stage it needs 3 days to eight weeks.
So the immature stage of the housefly is maggot and the answer is a maggot.
When coming to other options, the caterpillar is the larval stage of the butterfly and the nymph is the larval stage of some of the insects like grasshoppers and locusts.
And the grub is the larval stage of some insects. For example, beetles.

So, the correct option is a maggot.

Note:
The gestation period of a housefly is usually a 24 hrs, where the eggs hatch and produce the maggots and these maggots feed on the egg site for nutrition for metamorphosis and it develops into a pupa and adult stages, usually housefly are acts as vectors for many diseases and also act as a vector for pollination in plants.