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Jamb Biology Past Questions and Answers

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Jamb Biology Past Questions

Question 666:


The vilius in the small intestine is significant because it

A. Increase the surface area for absorption
B. Increase the surface area for digestion
C. Assists in mixing digested food
D. Assists in filtering undigested food


Question 667:


If a ring of bark and phloem is removed from a stem, the

A. Plant dies immediately
B. Plant dies after two days
C. Movement of food is not affected
D. Movement of minerals is hardly affected


Question 668:


Transpiration can be measured with a

A. Photometer
B. Hygrometer
C. Potometer
D. Barometer


Question 669:


Excretory products responsible for the red, purple and blue colours of flowers are called

A. Alkaloid
B. Tannins
C. Anthocyanins
D. Resins


Question 670:


Etiolation is caused by the influence of

A. Minerals salt
B. Water
C. Carbondioxide
D. Light






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