Question

Allen's and Bergmann's rules are perfect examples of natural selection working to bring about anatomical adaptations to environments in mammals. These include:

1. the limb and trunk proportions of Neanderthals
2. the limb and trunk proportions of modern populations
3. the limb and trunk proportions of most mammals
4. all of the above

Answer 1

Allen's and Bergmann's rules are examples of natural selection causing anatomical adaptations in mammals. These rules apply to the limb and trunk proportions of Neanderthals, modern populations, and most mammals.

Step-by-step explanation:

Allen's and Bergmann's rules are examples of natural selection causing anatomical adaptations in mammals. These rules apply to the limb and trunk proportions of Neanderthals, modern populations, and most mammals. The rules state that animals living in hotter climates generally have longer extremities than closely related animals living in colder climates.