English, asked by omkarbhosale, 1 year ago

autobiography of a housefly

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Answered by Anonymous
1
nice ques.

housefly says . that her life is very miserable no one allows to sit near him or her
Answered by Anonymous
4
The muscular system specially, the flight muscles, are well developed. The flight muscles constitute the 11% of its body weight. The alimentary canal is long and carries distinct diverticulum and crop. The crop is believed to have sucking ability. The respira­tory system is represented by 10 pairs of spiracles, longitudinal tracheal trunks and their segmental branches.

A pair of large dilated base in the abdomen is known as aerostats. Of the ten pairs of spiracles, the eight pairs of abdominal spiracles are simple in construction. The two pairs of thoracic spiracles are specially modified and are supposed to act as sound producing organs. The network of tracheae has reduced the haemocoelomic space.

Such spaces are con­fined near the wing muscles and are filled up with blood containing carbohydrate and other reserve fuels. The function of excretion is carried out by four elongated Malpighian tubules. The fusion of thoracic segments has led to the condensation of nerve cord.

Mechanism of feeding:

It ingests liquid food. The solid foods like sugar are mois­tened by its saliva and are taken in a dis­solved state. During ingestion the fly ex­tends the proboscis and immerses the labella within the food.

The pseudotracheae of the labella are filled up with the liquid food by capillary action. The sucking action of mus­cular pharynx draws the food inside the food channel. The crop is filled up with large volume of food, which enters to the mid gut slowly.

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