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Biology Past Questions and Answers

Waec Biology Questions

Question 176:

Which of the following is the unit of transmission of hereditary traits in living organisms

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A Nucleus
B Nucleolus
C Gametes
D Genes
E Chromosomes

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Question 177:

The role of dead organic matter in the soil is to

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A Make the soil black
B Increase the mineral salt content
C Provide food for all living organisms
D Increase the acidity of soil
E Make the soil more porous

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Question 178:

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

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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

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Question 179:

Which of the following may not contribute to environmental pollution?

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

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Question 180:

Succession is best described as

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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

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