Question 456:

• JAMB 1986

When the original king and queen of termites die, they are replaced by

A. The king and queen of another colony
B. Some adult reproductives from the same colony
C. Some adult workers which are specially fed breed
D. Developing nymphs nurtured as secondary reproductives

Question 457:

• JAMB 1986

The male cockroach differs from the female by having

A. Mandibles
B. A pair of style
C. Spiracles
D. A pair of cerci

Question 458:

• JAMB 1986

The fins making up the limbs of the bony fish are

A. Caudal and ventral
B. Ventra and pelvic
C. Pelvic and pectoral
D. Pectoral and dorsal

Question 459:

• JAMB 1986

The stem differs from the root in having the xylem and phloem strands

A. On the same radii
B. Scattered
C. On alternate radii
D. Towards the pith

Question 460:

• JAMB 1986

Oxygen liberated during photosynthesis has been demonstrated to come from

A. Carbondioxide
B. Air
C. Water
D. Chlorophyll