Biology 2008 Waec Past Questions and Answers

Question 36 :

• WAEC 2008

Shrubs do not survive on newly weathered soils because

A. The top soil is shallow
B. Drainage on such soil is poor
C. Humus is absent from the soil
D. The soil tends to be sandy

Question 37 :

• WAEC 2008

The speed of the flow of water in a river is faster in the middle than along the banks due to

A. Differences to turbidity at different parts of the river
B. The abundance of fishes and other organisms along the bank
C. Reduced force of gravity in the middle portion of the river
D. Resistance offered by the wall of the banks.

Question 38 :

• WAEC 2008

The effects of environmental degradation caused by human activities can be controlled by e following measures except

A. Reclaiming the land
B. Converting mining pits into fish ponds
C. Resettling indigenous inhabitants
D. Educating people

Question 39 :

• WAEC 2008

The following observations concerning succession are true except that the

A. Pioneer community has fewer species
B. Middle stages communities are most diverse
C. Max community has the greatest number of species
D. Total biomass of the community increases as succession progresses

Question 40 :

• WAEC 2008

A vaccine is introduced into a person‘s body to

A. Destroy all disease-causing organisms in the body
B. Stimulate the body to produce antibodies
C. Enhance the production of red blood cells
D. Isolate disease-causing pathogens from the blood.