The free-swimming form has un umbrella-shaped body with an opening that serves as both mouth and anus on the underside that is surrounded by

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13-12-2022
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The free-swimming form has un umbrella-shaped body with an opening that serves as both mouth and anus on the underside that is surrounded by

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NomulaHarsh NomulaHarsh · Answer 1 · 2022-12-17T07:01:14+01:00

The free-swimming medusa form has un umbrella-shaped body with an opening that serves as both mouth and anus on the underside that is surrounded by tentacles.

What are features of cnidarians?

Cnidarians are divided into four main groups: the immobile (sessile) Anthozoan, which includes sea anemones, corals, and sea pens; the Cubozoan, which includes box jellies; the swimming Scyphozoan, which includes jellyfish; and the Hydrozoa, which is a big group that includes all freshwater cnidarians as well as many marine species. About 10,000 different species of Cnidarians exist.

The hearts and lungs of Cnidaria are absent. They lack an anus, but they do have an internal cavity for breathing and a gastrovascular cavity (a "stomach") with a mouth. They have a body wall consisting of two layers (the ectoderm and the endoderm), divided by a layer that resembles jelly and is known as the mesoglea. By diffusion, other crucial processes take place, including respiration and excretion.

Therefore, The free-swimming medusa form has un umbrella-shaped body with an opening that serves as both mouth and anus on the underside that is surrounded by tentacles.

To learn more about cnidarians click

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The free-swimming ______ form has un umbrella-shaped body with an opening that serves as both mouth and anus on the ______ underside that is surrounded by

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The free-swimming form has un umbrella-shaped body with an opening that serves as both mouth and anus on the underside that is surrounded by