To analyze how reducing low-growing plants in an area would impact a population of tortoises with two neck extension abilities—short and long distance—let’s consider the implications of such a habitat change.
Low-growing plants are a primary food source for tortoises, especially those that can only extend their necks a short distance. If these plants are reduced, the tortoises that can only extend their necks short distances would struggle to find food, leading to potential starvation and decreased survival rates for that group.
On the other hand, tortoises that can extend their necks long distances might be better equipped to reach remaining food sources, which could allow them to thrive despite the reduction in low-growing plants.
Given this scenario, the following conclusions can be drawn:
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A) The variety of tortoises that could only extend their necks a short distance would go extinct. - This is a possible outcome since they would have a harder time finding food.
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B) The proportion of tortoises that could only extend their necks a short distance would increase. - This is unlikely, as their ability to access food would decrease.
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C) The proportion of tortoises with the ability to extend their necks a long distance would increase. - This is a likely outcome because they would have better access to food and a better chance of survival.
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D) The variety of tortoises with the ability to extend their necks a long distance would go extinct. - This is unlikely since they are better adapted to the changing food availability.
Based on this analysis, the most appropriate answer is:
C) The proportion of tortoises with the ability to extend their necks a long distance would increase.