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Biology Past Questions and Answers

Waec Biology Questions

Question 716:

Which part of the gill of fish is involved in gaseous exchange?

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A Gill slits
B Gill bars
C Gill covers
D Gill filaments

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Question 717:

Which of the following is not a product of fermentation of glucose?

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A Energy
B Alcohol
C Lactic acid
D Carbon dioxide

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Question 718:

Which of the following pairs of structures does not perform similar functions?

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A Lungs and spiracles
B Root hair and mammalian hair
C Feathers and scales
D Contractile vacuole and kidney

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Question 719:

The effect of the contraction of the muscles of the diaphram is that

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A He volume of the thoracic cavity increases.
B More carbon dioxide is expelled through the nostrils
C The rib cage is drawn inwards
D The intercostal muscle becomes relaxed

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Question 720:

Which of the following is an excretory product of Amoeba?

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A Urea
B Ammonia
C Uric acid
D Amino acid

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