how do plate tectonics help explain the presence of unique animal species on continents such as australia

Plate tectonics are located under the earth, and move over millions of years, and helped convert the world from Pangea into the seven continents that we now know. We can examine the plate tectonics under Australia and can understand what kinds of animals traveled over to Australia from other regions during the presence of the supercontinent known as Pangea.

I think my answer is a bit vague, but I hope it helps you better understand. :)

Correct answer is D. All of the above  

Explanation:

All options are correct because while participating in the campaign for presidential elections in 1904, president Roosevelt mentioned the Panama Canal project as one of main goals of his presidency.

Also, the creation of Panama Canal was totally funded by United States, and in 1914 connected two oceans.

Also, US controlled Nicaragua from 1912 until 1933 with a goal to secure that they will be the one to control the building of Nicaragua Canal.