What are the three groups of animals in Aristotle's classification system?

Biology · Middle School · Mon Jan 18 2021

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Answer : He classified animals by where they lived (land, sea, and air.) Aristotle further classified animals as 'with blood' and 'without blood'. 

Animals with blood were divided into live-bearing (humans and mammals), and egg-bearing (birds and fish).

Aristotle classified organism based on their blood type.

Anemia- animals with red blood cells

Enemia- animals without red blood cell