compare the TS of hydra and that of sea anemone
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Answer:
A common organism to study in a biology lab is the hydra. The hydra belongs to a group of organisms known as cnidarians or sometimes called coelenterates. This phylum also includes animals such as the jellyfish and sea anemone and the organisms that make up coral reefs. The common characteristic to all of these animals is that they have stinging cells located, known as cnidocytes, on their tentacles.
Because they belong to the animal kingdom, you can also assume that all cnidarians are multicellular and heterotrophic - meaning they must consume their food in some way. Many cnidarians spend their lives attached to objects where they wait for fish or other organisms to swim by them and become trapped by their tentacles.
Let's compare the main types of cnidarians. Sea anemones belong to the class Anthozoa, which translates to mean "flower animal". Anemones are often very colorful and have hundreds of tentacles that wave in the water currents while the main part of their body remains attached to a surface. They are pretty to look at, but deadly to fish that swim too close. The fish becomes paralyzed by the stinging cells and eventually is pushed into the anemone's mouth, which is at the center of the tentacles. The main body area contains a gastrovascular cavity, which is like a stomach, where the fish is digested.
Explanation:
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