Question

According to plate tectonic theory. Australia was a part of the supercontinent Pangaea. Millions of years ago Pangaea divided, and eventually Australia was separated as its own continent. Which of the following is most likely a result of the isolation of the Australian continent for millions of years?
A) Australia has no fossil record of species evolution.
B) Australia has a large number of species that are not found anywhere else.
C) Plant populations in Australia have all evolved to be self- pollinating to maximize their chance for reproduction.
D) Animal populations in Australia have little genetic diversity and are les likely to survive environmental changes.
Please help!!

Answer 1

The result of the isolation of the Australian continent for millions of years was because the continent has no fossil record of species evolution.

The supercontinent Pangaea was believed to exist in early times and incorporated all the landmasses on Earth

• The theory of continental drift explains that plate whichs forms the lithosphere of continent continue to move and has been in process for million of years ago

• The theory of continental drift does applies to Australia continent as well because it is believed the continent moves away and isolates from the supercontinent Pangaea

Hence, the Option A is correct because the result of the isolation of the Australian continent for millions of years was because the continent has no fossil record of species evolution.

Read more about continental drift

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