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In-s [12.5K]
3 years ago
13

What two categories did Greek philosopher Aristotle use to classify living organisms ?

Biology
2 answers:
LuckyWell [14K]3 years ago
7 0

Answer: those with blood and with out

Explanation:

GaryK [48]3 years ago
6 0
Aristotle classified living organisms as those with blood and those without.
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Which of the following does natural selection act directly upon? Alleles, genes, individual organisms, or mutations?
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Natural selection act directly upon <u>Alleles</u>

Explanation:

Genes, such as that of fur color, have many variants called alleles. Natural selection act on the alleles and chooses the best fit for an environment and eliminates the disadvantageous ones from the population over generations. Mutations are a rare occurrence that increases the number of allelic variants of a genes on which natural selection can act upon.

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Explain in detail, the flow of blood through the heart. Someone please help
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As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body.

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Food chains display organisms in order in order terms of energy flow. Each arrow in the food chain represents the
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inna [77]

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Ethylene

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Julli [10]

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