The answer is; C
The study of plant and animal life in an environment is known as ecology. Anthropology is mainly defined as the study of humans, their behaviors and societal norms and values (such as politics, culture, religion, and language), in the past and present.
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Question? You are supposed to write questions on this website, not statements.
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There are many ways that classes of people differentiate themselves from others, but one of the most common ways is by race and/or community where there is a plurality of people. Those may be rather stereotypical pictures, but you get the idea. Diversity is awesome. One lifespan isn't enough to discover all the many forms human beings are and why.
He's WRONG
The answer is <em><u>50%.</u></em>
<u><em>SOS:</em></u> Approximately one-half the income in Central America comes from its exports. Half of this trade is with the U.S. and Canada; other trading partners include Europe, Mexico, and South America. The Panama Canal is very important for trade within the region.
Ocean floor subducts under continents because the ocean floor is softer and the crust in here is with lesser density and thickness, while the continents are harder because their crust is thicker and has bigger density. So when they collide, the softer ocean floor is pushed downwards by the harder continental crust.