FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 201:

• JAMB 1983

The dental formula of a i(3/3); c(1/1); pm(4/4; m(2/3) = 42 represent that of a

A. Rabbit
B. Full grown man
C. Young child
D. Dog
E. Sheep

Question 202:

• JAMB 1983

Starting from the skull end the vertebrate are arranged in the following order

A. Axis, atlas, cervical, thoracic and lumber
B. Atls, cervical, axis, thoracic and lumber
C. Atlas, axis, thoracic, cervical and lumber
D. Atlas, axis, cervical, thoracic and lumber
E. Atlas, thoracic, cervical, axis and lumber

Question 203:

• JAMB 1983

Which of the following statements on the mammalian circulatory system is NOT true?

A. Blood in the pulimonary artery is richer in oxygen content than blood in the pulmonary vein
B. The blood in the hepatic portal vein is the richest in food substance
C. Blood flow is controlled by valves in the veins
D. Arteries are generally thicker and larger than veins
E. Fibrin helps in the formation of blood clot

Question 204:

• JAMB 1983

In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the

A. Movement of auxins away from the region of curvature
B. Even distribution of auxins in all parts of the coleoptile
C. Inhibition of growth by auxins in the region f smaller curvature
D. Concentration of auxins in the region of curvature
E. Absence of auxins in the coleoptile

Question 205:

• JAMB 1983

The tuber cassava is NOT a stem tuber because it

A. Is distended with food reserve
B. Has an aerial shoot portion
C. Has other structure that could be called root
D. Lacks axillary buds
E. Has a bark over its stored food