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Biology Past Questions and Answers

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Waec Biology Questions

Question 961:

A faster colour change of a dry cobalt chloride paper affixed to the lower surface of a leaf than the upper one, indicates that

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A Sunlight slows down water loss from the upper surface
B The lower surface of the leaf has more stomata
C Sunlight causes the stomata on the upper surface to close
D Stomata are not present on the upper surface of a leaf

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Question 962:

Which of the following takes place when a person’s body temperature rises above 37^oC

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A Sweating and vasoconstriction
B Panting and vasoconstriction
C Sweating and vasodilation
D Panting and vasodilation

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Question 963:

Which of the following glands secretes a substance into the blood stream of a frightened person?

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A Adrenal glands
B Salivary glands
C Gastric glands
D Parathyroid glands

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Question 964:

Reading the verdict of a case by a judge or magistrate is an example of

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A A reflex action
B An instinct
C A conditioned reflex
D A voluntary action

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Question 965:

Which of the following describes an example of fertilization in higher organisms?

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A Fusion of sperm and egg nuclei
B Ejaculating of sperm into a female body
C Male gametes germinating in the pollen tube
D A pollen grain landing on a sticky stigma

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