Jamb Biology Past Questions and Answers

Question 26:

• JAMB 2019

Which of these is not associated with the movement of the toad, reptile or bird?

A. Bopping
B. Flapping
C. Pecking
D. Hopping
E. Gliding

Question 27:

• JAMB 2019

Which of these is not a part of the feather of a bird?

A. Vane
B. Inferior umblilicus
C. Wing
D. Aftershaft
E. Barbule

Question 28:

• JAMB 2019

Which of these is not a function of the mammalian skin?

A. Excretion of waste and water
B. Production of pigments to reduce temperature
C. Production of vitamin d when exposed to sun light
D. Protection against bacteria infection
E. Regulation of body temperature

Question 29:

• JAMB 2019

Which of these elements in plants is required in small quantities only

A. Potassium
B. Magnesium
C. Phosphorus
D. Nitrogen
E. Boron

Question 30:

• JAMB 2019

A potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard?

A. 28 secs
B. 25 secs
C. 20 secs
D. 15 secs
E. 30 secs