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Biology Past Questions and Answers

Jamb Biology Questions

Question 856:
starch is usually stored in the part labelled
  • A I
  • B II
  • C III
  • D Iv
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Question 857:
The failure of transport and respiratory systems in plants as well as the presence of reddish colour in stems and leaves result from the deficiency of
  • A Magnesium
  • B Nitrogen
  • C Potassium
  • D Phosphorus
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Question 858:
The dental formula 13/3 c1/1 pm4/4 m2/3 is that of a
  • A Goat
  • B Rabbit
  • C Man
  • D Dog
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Question 859:
The nitrifying bacteria, Nitrosomonas, convert ammonia to
  • A Nitirites
  • B Nitric acid
  • C Niitrates
  • D Nitrous oxide
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Question 860:
The activity of ptyalin is likely to decrease with an increase in concentration of
  • A Oxygen
  • B Starch
  • C Protein
  • D Acid
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