Answer:
It's A!
Step-by-step explanation:
The answer is A. There are species that live in North America that are not found in Australia. This observation does not directly relate to the theory of natural selection, which is concerned with how variations within a population can lead to differential survival and reproduction, ultimately resulting in changes in the traits of a population over time. The fact that different species exist in different regions is more related to biogeography and historical factors such as continental drift, rather than natural selection.
On the other hand, options B, C, and D are related to the theory of natural selection. Option B refers to the vestigial tailbones in humans, which suggest a common ancestry with other animals and are an example of a trait that has lost its original function through natural selection. Option C refers to the similarity between prehistoric mastodons and modern elephants, which suggests that elephants have evolved over time through natural selection. Option D refers to the observation that similar species tend to live near each other, which can be explained by the fact that they share similar environmental requirements and have evolved similar adaptations to survive in their respective habitats.
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