How does the digestive system evolve as animals become more complex?

1 Answer
Kanishk2020
Feb 3, 2018

Because of multicellular organism

Explanation:

human beings(homo sapiens) are most complex orgainism found on earth and they have many organs for their functioning whereas animals being as unicellular with not more complex or not more simpler body,they have not complex digestive system and the unicellular organism transport food by process of diffusion and they have not comples organs due to their small size as humans are multicellular organism so they have complex digestive system.

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