Final answer:
Physical environment determinants between indigenous Australians and non-indigenous Australians vary due to cultural and biophysical factors, as well as geographic differences between countries. Adaptations to the environment can also result in human variation among different populations.
Step-by-step explanation:
Variations in physical environment determinants between indigenous Australians and non-indigenous Australians can be attributed to both cultural and biophysical factors. The indigenous peoples of Australia, for example, chose to maintain a hunter-gatherer lifestyle despite the availability of agricultural options. This decision was influenced by their cultural needs and the environment in which they lived.
Furthermore, geographic differences between countries create various opportunities and challenges for commerce, health, and the environment. Australia, for instance, has a relatively flat and dry interior, while New Zealand is characterized by high mountains and adequate rainfall.
Adaptations to the environment can also lead to human variation among different populations. Indigenous populations in the Andes, Tibet, and the Ethiopian highlands have developed unique adaptations to living in low-oxygen environments. For example, Tibetans compensate for low oxygen levels by taking more breaths per minute, while those in the Andes have higher concentrations of hemoglobin in their blood.