Question 761:

• JAMB 1992

The blood vessel which carries blood from the alimentary canal to the liver is the

A. Hepatic artery
B. Hepatic vein
C. Hepatic portal vein
D. Mesenteric artery

Question 762:

• JAMB 1992

Gaseous exchange in Aves occurs in the

A. Tracheoles
B. Bronchi
C. Air sacs
D. Trachea

Question 763:

• JAMB 1992

In the absence of oxygen, the pyruvic acid produced during glycolysis is converted to CO₂ and

A. Water
B. Glycerol
C. Ethanol
D. Citric acid

Question 764:

• JAMB 1992

The excretory organ in insects is the

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

Question 765:

• JAMB 1992

The structure labelled 5 is the

A. Sweat gland
B. Sebaceous gland
C. Blood vessel
D. Nerve fibre