Biology 9700 · AS & A Level · Conservation

Conservation — practice question

(a) The tiger, Panthera tigris, is listed as an endangered species by the International Union for the Conservation of Nature and Natural Resources (IUCN). The IUCN issues an annual Red List of endangered species. Fig. 8.1 illustrates the number of tigers living in the wild from 1900 to 2010.
(a)[2]

Calculate the total decrease in the number of tigers from 1900 to 2010. Give your answer to the nearest whole number.

(b)[4]

Describe why a named species has become endangered.

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