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 Form 3 Biology questions and answers on ecology

The herbivorous mammalian species were introduced into an ecosystem at the same time and in equal numbers. The graph below represents their populations during the first seven years.
Study the graph and answer the questions that follow.
figtransport16620201559.JPG
(a) (i) Which species has a better competitive ability?
(ii) Give reason for your
(b) Account for the shape of the curve of species
A between:
(i) One year and three years
(ii) Three years and seven years.
(c) A natural predator for species A was introduced into the ecosystem. With a reason, state how the population of each species would be affected.

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