Differentiate extra-cellular digestion from intra-cellular digestion. Which one is an advanced form?

Compare the respiration in higher plants with the respiration of lower plants.

In the touch - me - not plant the leaves show movements. What type of movement have you observed? Discuss.

Differentiate aerobic respiration from anaerobic respiration. Mention the event that is common to both.

Observe the given model that can be used to demonstrate the breathing mechanism in human beings.

Name the structures which can be compared to:

(i) Lungs (ii) Diaphragm

(iii) Trachea (iv) Nostrils (Nose)