Waec Biology 1995 Past Questions and Answers

Question 36:

• WAEC 1995

Which of the following conclusions
cannot be drawn from the graphs?

A. Ion is taken up more rapidly at suitable temperature
B. Suitable oxygen concentration increases ion uptake
C. Ion uptake requires energy from aerobic respiration of sugar
D. Ion uptake occurs most rapidly in adequate supply of, respiratory substrate
E. The quantity of ions absorbed is inversely proportional to the quantity of carbohydrate (sugar) synthesized.

Question 37:

• WAEC 1995

Which of the temperature ranges will likely favour the plant best?

A. 0 -10^oC
B. 15.-20^oC
C. 30- 40^oC
D. 45 - 50^oC
E. Above 50^oC

Question 38:

• WAEC 1995

Which of the following is the correct chain for the organism found in an aquatic community?

A. Paramecium, Phytoplankton, Prawn, Waterflea, Tilapia, Shark
B. Waterflea, Paramecium, Phytoplankton, Prawn, Tilapia, Shark
C. Phytoplankton, Waterflea, Paramecium, Prawn, Shark, `tilapia
D. Phytoplankton, Paramecium, Waterflea, Prawn, Tilapia, Shark
E. Paramecium, Phytoplankton, Waterfiea, Prawn, Shark, Tilapia

Question 39:

• WAEC 1995

In a food chain the position occupied by an organism is called

A. The trophic level
B. Energy level
C. The feeding level
D. The habitat level
E. Niche

Question 40:

• WAEC 1995

Which of these statements about food chain is not correct?

A. Animals in the chain are consumers
B. A food chain usually begins with a green plant
C. All organisms in a food chain are animals
D. Living things are dependent on one another
E. The food chain involves energy transfer in an ecosystem