(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.
(a) List three functions of the kidney.
(b) Make a labelled diagram of the mammalian kidney tubule (nephron)
(c) Describe how the kidney carries out two of the functions listed in (a).
(a) What would you observe if a filament of spirogyra is immersed in 0. 1 m sodium chloride solution for about one hour?
(b) Name the process which occurred during the immersion of the spirogyra filament in 0.1 m sodium chloride solution.
