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Biology Past Questions and Answers

Waec Biology Questions

Question 406:

Which of the following conditions is not necessary for photosynthesis to occur in plants?

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A There must be light
B There must be xylem tissue used to conduct water
C There must be chlorophyll to trap radiant energy
D Carbondioxide must be present
E Water must be present

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Question 407:

The distribution of organisms in a fresh - water habitat like a stream or pond is determined by the following
except

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A Rainfall
B Temperature
C PH of soil
D Light penetration
E Tidal movements

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Question 408:

Which of the following is characteristics of a swamp?

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A Vegetation with stratified arrangement
B Mesophytes with broad leaves
C The ground is flooded most of the time
D Predominance of climbing plants
E Many plants with tire resistant structures

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Question 409:

Very low annual rainfall, sparse vegetation, high day temperatures and cold nights are the characteristics
of the biome known as

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A Swamp
B Tropical forest
C Southern guinea savanna
D Afro alpine
E Desert

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Question 410:

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

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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.

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