SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is NOT a method of dispersal exhibited by populations?
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being carried by the wind
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eaten by animals and spread in feces
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floating or drifting on vegetation
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Detailed explanation-1: -The modes of dispersion of seeds are gravity, wind, water, explosion and animals. Sunlight doesn’t have any direct effect on dispersion of seeds.
Detailed explanation-2: -Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds. The most common methods are wind, water, animals, explosion and fire.
Detailed explanation-3: -There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus.
Detailed explanation-4: -A specific type of organism can establish one of three possible patterns of dispersion in a given area: a random pattern; an aggregated pattern, in which organisms gather in clumps; or a uniform pattern, with a roughly equal spacing of individuals.
Detailed explanation-5: -Uniform dispersion. In uniform dispersion, individuals of a population are spaced more or less evenly. Random dispersion. In random dispersion, individuals are distributed randomly, without a predictable pattern. Clumped dispersion. In a clumped dispersion, individuals are clustered in groups.