WAEC Biology questions: Co-ordination and control

27 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Co-ordination and control· WAEC

   The Eustachian tube connects the middle ear to the

   • Acochlea
   • Bthroat (pharynx)
   • Cbrain
   • Douter ear

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   Explanation and discussion

2. Question 22· Co-ordination and control· WAEC

   A diabetic person's blood glucose stays high because of too little

   • Aadrenaline
   • Binsulin
   • Cglucagon
   • Dthyroxine

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   Explanation and discussion

3. Question 23· Co-ordination and control· WAEC

   A reflex action is

   • Aa voluntary movement
   • Ba learned response
   • Ca rapid automatic response to a stimulus
   • Dcontrolled by hormones only

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   Explanation and discussion

4. Question 24· Co-ordination and control· WAEC

   The pituitary gland is called the master gland because it

   • Ais the largest gland
   • Bcontrols other endocrine glands
   • Cproduces bile
   • Ddigests food

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   Explanation and discussion

5. Question 25· Co-ordination and control· WAEC

   The quick withdrawal of the hand from a hot object is a

   • Areflex action
   • Bvoluntary action
   • Clearned behaviour
   • Dhormone action

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   Explanation and discussion

6. Question 26· Co-ordination and control· WAEC

   Deficiency of iodine in the diet can lead to

   • Agoitre
   • Bdiabetes
   • Cscurvy
   • Danaemia only

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   Explanation and discussion

7. Question 27· Co-ordination and control· WAEC

   Which part of the human eye adjusts the size of the pupil?

   • Acornea
   • Biris
   • Cretina
   • Dlens

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   Explanation and discussion