2009 - WAEC Biology Past Questions and Answers - page 5
41
Which of the following features is not an adaptation of plants to aquatic habitat?
A
Breathing roots for entry of air
B
Flowers raised above water for the purpose of pollination
C
Spongy tissues containing gases for buoyancy
D
Hairy structures on the leaves to reduce water loss
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The following habitats can be used in the study of succession except
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Population growth rate may be defined as the
A
ortality rate per unit area over a period
B
number of times an organism occurs within a given period
C
number of a particular species per unit area
D
net rate of natality and mortality in the habitat over a period.
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In ecological succession, since Iichens grow on bare rock, they are considered to be
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Which of the following factors will most likely lead to overcrowding within a population?
D
Absence of territorial behaviour
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A species whose populations has become so small that it may become extinct if not protected is a/an
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Which of the following practices does not contribute to the preservation and improvement of the environment?
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Variation is important in human life and can be used for the following activities except
D
determination of paternity
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An example of continuous variation is
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The outward appearance or an organism is referred to as
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