Question

Circulatory system does not exist in which of the following organisms

Answer 1

Answer:

Animals without circulatory systems: Simple animals consisting of a single cell layer, such as the (a) sponge, or only a few cell layers, such as the (b) jellyfish, do not have a circulatory system. Instead, gases, nutrients, and wastes are exchanged by diffusion

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Explanation:

Answer 2

just elaborate ur question pls