10. Rainforests found on islands Ca roughout the Caribbean Sea have a number of
ID: 277879 • Letter: 1
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10. Rainforests found on islands Ca roughout the Caribbean Sea have a number of endemic se but in the native forests of those islands). About 75% of the vailable for use by these species. The graph below shows the amphibians present on islands of varying size throughout the e approximate percentage of the 75 reptile and d area on the island of Cuba has urban use and is thus no longer een converted from native forest to either agricultural or from use umber of species of reptiles and on s Caribbean.- Use this curve to predict the approximate percente amphibian species originally found o n Cuba that are in danger of going extinct due to habitat loss 90 80 Cuba 70 60 Jamaica 40 Puerto Rk 30 PUERTO ROCO JAMAICA 2 20 Montserrat r0 Saba o Redonda 20.000 N#0.000 eo,000 80,000 100.000 120.00. Area fsquare kfomelers) A. 10%. B. 20%. C. 33%. D. 6696. E. 75%.Explanation / Answer
From the graph,
Area of Cuba = ~100000 km2
Corresponding initial Reptiles and amphibian species = 75
Area Loss percentage = 75%
Area lost in km2 = Area of Cuba * (Area Loss percentage/100) = 100000 * (75/100) = 75000 km2
Remaining land = Area of Cuba - Area lost in km2 = 100000 - 75000 = 25000 km2
From the graph, for 25000 km2, Corresponding final Reptiles and amphibian species = 50
Loss in species = Initial Reptiles and amphibian species - Final Reptiles and amphibian species = 75 - 50 =25
Loss of species in percentage = (Loss in species / Initial Reptiles and amphibian species) * 100
= (25/75)*100 = 33%
Loss of species in percentage = 33%
ANSWER: C. 33%
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