FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 471:

• JAMB 1993

The main function of blood in mammals is to transport

A. Excretory materials from tissues
B. Carbondioxide from lungs to tissues
C. Digested food from all the body tissues
D. Oxygen to the lungs

Question 472:

• JAMB 1993

Members of the phylum protozoa use the contractile vacuole

A. To remove excess food
B. For movement
C. For digestion
D. To remove excess water

Question 473:

• JAMB 1993

The response shown by the tips of the root and shoot of a plant to the stimulus of gravity is

A. Haptotropism
B. Phototropism
C. Hydrotropism
D. Geotropism

Question 474:

• JAMB 1993

Which of the following is the correct order of the vertebrae along the spinal column?

A. Axis → atlas → thoracic → lumbar → cervical → sacral
B. Atlas → cervical → axis → thoracic → lumbar→ sacral
C. Atlas → axis → cervical → thoracic → lumbar → sacral
D. Axis → atlas → cervical → thoracic → sacral → lumbar

Question 475:

• JAMB 1993

Which of the following is TRUE of the process of conjugation in paramecium?

A. Micronucleus disintegrates
B. Each ex-conjugant divides only once
C. Macronucleus undergoes division
D. Each micronucleus divides twice