Which of these instruments can be used to perform an experiment on geotropism?

Assessment: WAEC SSCE - Biology - 1996 (Objective) Subject: Biology

Question 1 Report

Which of these instruments can be used to perform an experiment on geotropism?
Answer Details
The instrument that can be used to perform an experiment on geotropism is the klinostat. A klinostat is a device that is used to study geotropism, which is the growth of a plant in response to gravity. It is designed to rotate a plant at a constant speed, which cancels out the effect of gravity, and allows the experimenter to study the effects of other stimuli, such as light, on the growth and orientation of the plant. Therefore, the correct answer is the third option, klinostat. The other options are instruments used for different experiments in biology, such as measuring water uptake in plants (potometer), wind speed (cup anemometer), recording muscle movements (kymograph), and blood pressure (sphygmomanometer).
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