Biology, asked by akanksha656, 11 months ago

Answer the following. B. The circulatory system has evolved from open to closed type in Animal Kingdom. Which Phylum can be called first to represent closed circulation?

Answers

Answered by Himanshumahour289

2

Answer:

Annelida is the first phylum to have closed circulatory system.

Explanation:

Mixing of pure and impure blood does not occur as they flow in different vessels.

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