Which of the following movement is seen in hydra?

Explanation

Hydra is a freshwater animal that belongs to the phylum Cnidaria. It is a tiny, tube-like creature that usually attaches itself to a solid surface and feeds on small organisms, such as plankton. The question is asking which of the following movements can be seen in hydra. Option A, swimming, is not a movement that is typically seen in hydra. While hydra is capable of movement, it does not swim like other aquatic animals. Option B, gliding, is also not a movement that is usually seen in hydra. Hydra moves by looping, which is different from gliding. Option C, looping, is the correct option. Hydra moves by looping, which means that it contracts its muscles and bends its body into a loop shape, then extends and attaches itself to a new surface. This movement allows hydra to move slowly and efficiently in its aquatic environment. Option D, crawling, is not a movement that is usually seen in hydra. Hydra does not have limbs or a body structure that allows it to crawl. Option E, swaying, is not a movement that is typically seen in hydra. Hydra moves by looping, not swaying. In summary, the correct movement that is seen in hydra is looping (Option C). To learn more about hydra and its movements, please read the relevant sections of the recommended textbooks.