EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the closer an island is to the main land, the more species it will have
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The number of species increases as island size decreases
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The number of species increases the further an island is from the mainland
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there is an inverse relationship between proximity to mainland and number of species on islands.
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Detailed explanation-1: -The theory of island biogeography predicts that the number of plant and animal species on an island is related to the area of the island’s landmass and the degree of isolation of the island. The theory states that smaller, more isolated islands have fewer numbers of plant and animal species. The converse is also true.
Detailed explanation-2: -The two main predictions of Island Biogeography Theory are: 1. Islands close to a source area will have a higher number of species than islands of equivalent area that are further from the source area. 2. Larger islands will have more species than smaller islands located at similar distances from the source area.
Detailed explanation-3: -According to the theory of island biogeography, which of the following statements is most accurate? The theory of island biogeography has value for conservation biology because: it gives us direction in the design of natural reserve areas.
Detailed explanation-4: -The core model of the theory, the equilibrium model of island biogeography, predicts that species diversity on an island is positively related to the size of the island, but negatively related by the island’s distance to the mainland.