Excretion - Jamb Biology Past Questions and Answers

Question 26:

• JAMB 1992

The excretory organ in insects is the

A. Kidney
B. Malpighian tubule
C. Flame cell
D. Nephridium

Question 27:

• JAMB 1993

Flame cells are the

A. Excretory system of worms
B. Excretory and respiratory systems of flatworms
C. Secretory syustem of flatworms
D. Excretory system of flatworms

Question 28:

• JAMB 1994

Which of the following waste products in plants is excreted through the stomata and lenticels?

A. Carbondioxide
B. Alkaloids
C. Tannins
D. Anthocyanins

Question 29:

• JAMB 1995

The excretory structure in the earthworm is the

A. Malpighian tubule
B. Flame cell
C. Nephridium
D. Kidney

Question 30:

• JAMB 1997

The nitrogenous substance that is excreted by birds in order to conserve water is

A. Ammonia
B. Urea
C. Uric acid
D. Nitric acid