Biology, asked by sudham1405, 6 months ago

organ and organ systems have appeared first in the phylum __________

Answers

Answered by kumar87977

2

Answer:

The aggregation of different kinds of tissues into organs is a further advancement in the evolution of animals. Organs appear first in the Platyhelminthese (flatworms).

Answered by arathim1913

4

Answer:

organ and organ systems have appeared first in the phylum Platyhelminthese

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