Answer:
Since neither reptile could have swum great distances across salt water he inferred that they once lived on a single landmass that has since split apart.
Polynesia Island was the most recently settled
The explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the Redshift- Doppler effect.
<h3>What is the Doppler effect?</h3>
The Doppler effect is the difference that occur between the frequency of a wave in relation to observer from the wave source.
The wavelength changes with change in the frequency.
<h3>How does the Doppler effect explain the redshift?</h3>
As an object moves away from Earth, the waves moves to the red end of the electromagnetic spectrum and becomes elongated. This results to the increase in wavelength.
Therefore, the explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the redshift-Doppler effect.
Read more on Doppler effect here:
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Answer:
Southwest Asia, Southeast Asia, and the Americas.
Explanation:
Major centers of domestication of plants and animals are Southwest Asia which also known as the Fertile Crescent, Southeast Asia, and the Americas. Plants and animals diffused globally because of the interaction of different cultures with each other. When the two different cultures interact with each other through migration from one region to the new one, both cultures exchanges some of the ways of living and methods. When the English people came to the New world, they introduced cultivation of corn crop which leads to diffusion of plants in the America.
