Answer:
This is an English server- sorry
Explanation:
<span>He would be called an ecologist. And the study of ecosystems is called ecology
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The Transcontinental Railroad innovation had the GREATEST impact on westward migration immediately after the American Civil War.
After the Civil War, there was great interest and opportunity with westward expansion. With the invention of the railroad, the transport of goods and people became quicker and less expensive than ever before.
The view that social change arises due to the inequalities between the haves and the have-nots is based on social cognitive theory. This states that <span>portions of an individual's knowledge that is acquired is related to observing others within </span>social<span> interactions.</span>