Waec Biology 2004 Past Questions and Answers

Question 31:

• WAEC 2004

An organism is considered a heterotroph when it

A. Feeds on inorganic food
B. Feeds on already manufactured food
C. Fixes atmospheric nitrogen
D. Respires anaerobically

Question 32:

• WAEC 2004

The break-down of food in o simple, soluble and absorbable end-products is termed

A. Absorption
B. Ingestion
C. Nutrition
D. Digestion

Question 33:

• WAEC 2004

Which of the following teeth are well-developed to form the carnassial teeth of carnivorous mammals? The

A. First lower premolar and third upper molar
B. First lower molar and third upper premolar
C. Second lower premolar and first lower molar
D. First lower molar and last upper premolar

Question 34:

• WAEC 2004

Biosphere is best described as

A. All parts of the earth where life exists
B. The non-living parts of an ecosystem
C. A components of an ecosystem
D. All the members of a single species in a habitat

Question 35:

• WAEC 2004

Which of the following is not essential in the studying of the ecological factors that directly affect plants?

A. Wind
B. Temperature
C. Herbivores
D. Carnivores