When air is blown from mouth into a test-tube containing lime water, the lime water

turned milky due to the presence of

In which part of the alimentary canal food is finally digested?

Choose the function of the pancreatic juice from the following

Which of the following is most appropriate for aerobic respiration?

Which of the following statement(s) is (are) true about respiration?

1. During inhalation, ribs move inward and diaphragm is raised

2. In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into

blood and carbon dioxide from blood into alveolar air

3. Haemoglobin has greater affinity for carbon dioxide than oxygen

4. Alveoli increase surface area for exchange of gases