Scientists, we know, divide living organisms into a system of classifications. As we begin to study how that system developed, and what the different categories mean, students got a first-hand understanding of just how tricky it can be to take a diverse group of things and try to agree on a way to categorize them... do you group these objects by their "use" or their "value" or "what they are made of" or something else altogether. It was a good way to come to understand the dilemmas that scientists face as they attempt to classify all the different lifeforms on our planet.
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