Question

as we know hydra doesn't posess any circulatory system then how the food and oxygen transported to different types of parts present in its body?​

Answer 1

Answer:

Animals such as sponges and Hydra do not posses any circulatory system. The water in which they live brings food and oxygen as it enters their bodies. The water carries away waste materials and carbon dioxide as it moves out. Thus, these animals do not need a circulatory fluid like the blood.

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