Biology WAEC Past Questions

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Species do not change in order to survive. The environment determines which organism survives to reproduce. These statements

A. explains theory of acquired characters
B. supports Jean Lamarck's theory of use and disuse
C. support the idea of survival of the fittest
D. are refuted by fossil record
E. imply that organisms modify their environment in order to survive

View Answer & Discuss WAEC 1991

Which of the following may not contribute to environmental pollution?

A. Solar energy radiation
B. Industrial waste
C. Waste disposal
D. Smoke
E. Nuclear power plant

View Answer & Discuss (6) WAEC 1991

Succession is best described as

A. a process whereby organisms systematically colonize a barren habitat until stable community is formed
B. a process whereby plant occupy a barren habitat until a suitable habitat is formed
C. a process whereby animals occupy a barren habitat until a suitable habitat is formed
D. the subsequent taking over of the land through emigration or dispersal of seeds
E. the replacement of weaker plants and animals by stronger ones

View Answer & Discuss WAEC 1991

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Predators are beneficial in pest control because they

A. are natural enemies of small mammals
B. devour farm animals
C. feed on pests of crops
D. prey on game animal
E. compete for food with the pests

View Answer & Discuss WAEC 1991

I.Plasmodium II. Vibro Choleroe III. Gonococcus sp IV. Poliomyelitis virus V. Syphilis bacteria
which of the following organism are transmitted by houseflies?

A. I and II only
B. II and V only
C. III and IV only
D. II and IV only
E. III and V only

View Answer & Discuss (4) WAEC 1991

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