Question

Compare the type of symmetry found in the starfish with that Hydra and Dugesia.

Answer 1

Answer:

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Explanation:

Starfish in its inital stages has bilateral symmetry which is soon lost to become pentamerism or radial symmetry

Hydra displays radial symmetry and may often display tetrameral symmetry as well.

Dugesia, which is a type of planarian, exhibits bilateral symmetry

Answer 2

Hydra and Dugesia

Explanation:

• Hydras, like all cnidarians, display radial symmetry.It is possible for the hydra to exhibit the two kinds of evenness simultaneously, as tetrameral symmetry can be worked around an a radial plan
• Cnidarians, among which family Hydra has a place, are considered as a sister group to the bilaterians. In this manner, the presence of an asymmetrical structure in hydra is a captivating marvel as for examination of the origins of bilateral symmetry