Question 606:

• JAMB 1989

Which of the following is a common characteristic of crustaceans?

A. Possession of a pair of antennae
B. Possession of two pairs of antennae
C. Each segmented has a pair of walking legs
D. Four pairs walking on the cephalothorax

Question 607:

• JAMB 1989

The pedipalps in spiders are used for

A. Grasping
B. Walking
C. Feeling
D. Web spinning

Question 608:

• JAMB 1989

The body of a snail is divided into head

A. Thorax and abdomen
B. Visceral mass and abdomen
C. Thorax and foot
D. Visceral mass and foot

Question 609:

• JAMB 1989

In dicotyledonous stem, each companion cell is founded beside the

A. Endodermal cell
B. Xylem vessel
C. Sieve tube
D. Pericyclic fibre

Question 610:

• JAMB 1989

If a healthy potted plant is continuously kept in dim light

A. The rate of respiration may equal that of photosynthesis
B. More carbondioxide and water are taken in
C. Respiration may be halted
D. The volume of oxygen released increase