Question

Oxygen enters the body of a grasshopper through:
a) gills
b) spinnerets
c) spiracles
d) book lungs

Answer 1

Grasshopper cannot breathe like human beings because they don`t have lungs for respiration. Infact the process of breathing in grasshopper is very slow as it takes place through air filled tubes called trachea.This trachea opens outside through small pores called spiracles.

In the grasshopper the first and the third segment of thorax have spiracles on each side. It is through these spiracles that the oxygen rich air enters the body of grasshoppers and reach all the cells by passing through chain of trachea and tracheoles.

Option C is correct.

Answer 2

The correct answer to your question is option (C)

Spiracles

Oxygen enters the body of a grasshopper through the spiracles. Spiracles are small openings above the eyes of an organism that opens into the mouth. Spiracles have the mechanism of gills of fishes. It can be compared with the primitive breathing mechanism of some fishes.