Biology Past Questions and Answers

(a) Describe an experiment to demonstrate the influence of auxins on the growth of plant shoot.
(b) List three uses of auxins in agriculture.
(c) Describe briefly the mechanism of transmission of impulses through a nerve fibre.

(a) Describe how the floral parts of a named flower are adapted to wind-pollination.
(b) Explain how each of the following behaviours in animals affects the reproduction process: (i) territoriality. (ii) display; (iii) seasonal migration.

Which of the following methods of reproduction is common to Paramecium and Amoeba?

Which of the following methods of reproduction is common to Paramecium and Amoeba?

Which of the following structures controls the activities of the living cell?