Question

Musca domestica exhibits………..metamorphosis.
(a) Incomplete
(b) Parthenogenetic
(c) Complete
(d) Retrogressive

Answer 1

It is a common insect of the family Muscidae (order Diptera). Around 90% of all flies happening in human residences are houseflies. Once a serious nuisance and hazard to public health in cities, houseflies are still a drag wherever decomposing organic waste and garbage are allowed to accumulate. It is dull dark with grimy yellowish regions on the midsection and longitudinal queues on the chest.

Complete answer:
Complete metamorphosis is the event during which the insects undergo all the four stages within the life cycle. Housefly or housefly displays total transformation since they have all the four phases as the egg, the hatchling or worm, the pupa, and accordingly, the grown-up stage. The egg hatches to form larvae. The larvae feed and develop into a pupa. The pupa is in the resting stage. The pupa lives within the cocoon then develops and mature to make the adult.

Additional Information: The housefly, Musca domestica, may be a serious threat to human and animal health. Houseflies are vectors of quite 100 human and animal intestinal diseases. They are capable of transmitting parasites that cause diseases such as typhoid fever, cholera, bacillary dysentery, infantile diarrhea, tuberculosis, plague, leprosy, yaws, salmonellosis, trachoma, and anthrax. Animal health concerns include the transmission of pinkeye. Houseflies can convey streptococcus and staphylococcus which are liable for mastitis in dairy steers. They are also liable for decreased feed conversion, lower milk yields, and that they delay the entry of replacement animals into production.
So the correct answer is ‘Complete’.

Note: The adult flies are not parasitic, but when they lay their eggs in open wounds and hatch into their larval stage (also known as maggots), the hatchlings feed on live or potentially necrotic tissue, making unplanned myiasis create. The livestock industry additionally must know about the annoyance issues that house flies cause to neighboring local locations.