Waec Biology Past Questions and Answers

Question 536:

• WAEC 1998

The role of bacteria in the nitrogen cycle includes the following except

A. Fixing atmospheric nitrogen
B. Converting ammonia to nitrites
C. Converting nitrites to nitrates
D. Converting carbohydrates to carbondioxide
E. Causing the decay of dead organisms

Question 537:

• WAEC 1998

The mode of nutrition which describes feeding habit in animals is

A. Autotrophic
B. Holozoic
C. Holophytic
D. Saprophytic
E. Photosynthetic

Question 538:

• WAEC 1998

Which of the following organisms has homodont dentition?

A. Rabbit
B. Man
C. Sheep
D. Cat
E. Lizard

Question 539:

• WAEC 1998

The pancreatic duct opens into the

A. Caecum
B. Colon
C. Ileum
D. Duodenum
E. Oesophagus

Question 540:

• WAEC 1998

The enzyme that acts on milk in the stomach is

A. Invertase
B. Trypsin
C. Diastase
D. Renin
E. Ptyalin