Question

Similarity between the trachea of cockroach and rabbit is that
a) Both are paired and branched
b) Ciliated epithelium is present in both
c) Walls of both cannot be deformed
d) In both head is originated from pharynx

Answer 1

Hint: The trachea which is also known as the windpipe is a tube that helps in the passage of air from the larynx to the bronchi of lungs, thus playing an important role in the process of respiration.

Complete answer:
Cockroaches are insects belonging to the phylum Arthropoda and hence their respiratory system is much different from humans. In cockroach respiration takes place through small openings that are present on the side of the body. These organisms do not comprise lungs so trachea here is a dense array of air tubes network that helps to maintain pressure inside the system. After oxygen enters into the cockroach’s body they are sent to the trachea from where it reaches to other parts of the body and carbon dioxide released by cockroaches also get expelled out through the trachea. Rabbits are mammals so their respiratory system closely resembles the one present in mammals. The trachea of rabbits are more familiar to that of humans, they are composed of cartilage rings which are connected by inter cartilaginous ligaments anteriorly and trachealis muscle posteriorly. One common property of the trachea present in both cockroach and rabbit is that their walls are strengthened so that they do not collapse during the process of respiration.

So the correct option is C) Walls of both cannot be deformed.

Note:
Trachea is very important in the process of respiration, if the trachea is somehow blocked respiration cannot take place and immediate attention should be given otherwise it can lead to death.