Respiratory system | neet

Why is a respiratory system necessary ?

Respiratory system is derived from

Which of the following respiratory systems is not closely associated with a blood supply?

Statement (S) : Respiratory system of Periplaneta is "polyneustic" type Reason ( R) : In Periplaneta thoracic spiracles help in inspiration

Conducting part of human respiratory system does not include

Which of the following is not a part of the respiratory system of Periplaneta americana ?

Which structure in human respiratory system is involved in conditioning of air?

What is the main site of human respiratory system where exchange of gases occurs?

Which of the following part of respiratory system form exchange part?

From the following, select the feature that is common to all respiratory systems in animals.