SORU: boş bırakılan yere parçanın anlam bütünlüğünü sağlamak için getirilebilecek cümleyi bulunuz
The irreversible loss of biodiversity has a serious impact on the ability of the remaining species, including humans, to survive. Humans depend on the diversity of species and healthy ecosystems to provide food, clean air and water, and fertile soil for agriculture. ---- As many as 40 per cent of our modern pharmaceutical medicines are derived from plants or animals. A small plant from Madagascar, the rosy periwinkle, for instance, produces substances that are effective in fighting two deadly cancers, Hodgkin's and leukaemia.
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However, the survival of ecosystems depends on their variety of plants, animals, and habitats. |
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In addition, we benefit greatly from the many drugs that biodiversity provides. |
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In contrast, modern medicine makes use of medicines derived from both natural and chemical sources. |
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Biologists believe that the Earth is currently going through a period of mass extinction. |
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In such cases, direct habitat destruction threatens the greatest number of species. |