Question

define general anatomy of hydra​

Answer 1

Answer:

The body of the hydra consists of several layers of tissue. The epidermis forms the outer layer of tissues. In some hydras, the epidermis secretes a substance called the perimderm, which protects the epidermis. The innermost layer of the hydra is the gastrodermis, which forms the lining of the digestive tract.

Explanation:

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