Name two phases of blood circulation in the human body.

What are the two important roles of the plant hormone ‘Gibberellins’ ?

The diagram given alongside is the longitudinal section of a human kidney. Study the diagram and answer the questions that follow.

(i) Label the parts numbered 1 and 3.

(ii) Name the fluid that passes down from the part numbered as 4. Also write its main nitrogenous constituent.

(iii) Why does part 2 show a striped appearance?

Define - Parturition.