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Biology Past Questions and Answers

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Waec Biology Questions

Question 1751:

An example of homeostasis in living organisms is

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A Cooling effect resulting from evaporation of water from the body surface
B Root hairs of a plant growing towards the source of light
C Changing of the body colour of chameleon to match the colour of the foliage on which it is resting
D The release of phosphorus into the phloem of a plant growing in a phosphorus-deficient soil

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Question 1752:

Ultrafiltration in the kidney takes place in the

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A Renal vein
B Medulla
C Loop of Henle
D Bowman's Capsule

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Question 1753:

The thyroid gland is found at the base of the

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A Midbrain
B Kidney
C Neck
D Liver

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Question 1754:

Which of the following statements about the response of neurones to stimulus is correct?

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A Neurons respond to stimulus of any strength
B Neurons respond to all stimuli applied in rapid succession
C Neurons respond more rapidly during the absolute refraction period
D Intensity of stimulus must reach a threshold value before the neurons can be excited

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Question 1755:

Which of the following practices may lead to infection of the eye? Use of

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A Contact lenses
B Convex lenses
C Biconcave lenses
D Concave lenses

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