Differentiate between lymphatic capillaries and blood capillaries.

With a schematic diagram, explain the overall process of respiration.

Differentiate between left lung and right lung of humans.

Draw a sieve tube and label the various parts. Name the dead elements of the phloem.

Name the main organs of the human digestive system in the order they participate in the process of digestion. Describe how digestion of carbohydrates and proteins take place in our body.