Question

In cockroaches, air enters the body through

• A. Lungs
• B. Gills
• C. Spiracles
• D. Skin

Answer 1

The correct option is C Spiracles

• The respiratory system of cockroach consists of a network of the trachea, that open through 10 pairs of small holes called spiracles present on the lateral side of the body. Thin branching tubes (tracheal tubes subdivided into tracheoles) carry oxygen from the air to all the parts. air enters the body through spiracles.
• Hence In cockroaches, air enters the body through Spiracles.
• So, the correct answer is 'Spiracles'.