(b) What is • Phototropism and • Geotropism? With labelled diagrams describe an activity to show that light and gravity change the direction that plant parts grow in. (b) Mention the role of each of the following plant hormones: • Auxin • Abscisic acid.
Updated 1/19/2026
Why are green plants called producers?
Updated 1/19/2026
(a) What will happen to guard cells and the stomatal pore when water flows into guard cells. (b) How do plants transmit information from cell to cell?
Updated 1/19/2026
Name the male and female gametes in animals. What is fertilization and where does it take place in human females?
Updated 1/19/2026
Describe briefly four ways in which individuals with a particular trait may increase in population.
Updated 1/19/2026
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