Question 451:

• JAMB 1986

For effective functioning of a bird's quill feather, hooks fit on the ridge of the

A. Vane
B. Rachis
C. Barbules
D. Barbs

Question 452:

• JAMB 1986

Which of the following is NOT true of spirogyra?

A. Reproduces by conjugation
B. Reproduces by fragmentation
C. Consist of branched filaments
D. Consist of unbranched filaments

Question 453:

• JAMB 1986

Which of the following lacks chaetae, tentacles and antennae?

A. Snail
B. Crab
C. Millipede
D. Earthworm

Question 454:

• JAMB 1986

Incomplete metamorphosis occurs in the

A. Butterfly
B. Grasshopper
C. Mosquito
D. Housefly

Question 455:

• JAMB 1986

Fishes are cold blooded because their body temperature is

A. Constantly low
B. Constantly high
C. Dependent on that of their surroundings
D. Regulated at will