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Body cavity of Hydra/coelenterata is kno...

Body cavity of Hydra/coelenterata is known as
(a) Coelenteron
(b) Pseudocoel
(c) Enterocoel
(d) Haemocoel

A

Coelenteron

B

Pseudocoel

C

Enterocoel

D

Haemocoel.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the body cavity of Hydra (Coelenterata), we will analyze the options provided and determine the correct answer step by step. ### Step-by-Step Solution: 1. **Understanding Body Cavity**: - The body cavity is defined as the space between the body wall and the gut wall. In organisms, this cavity plays a crucial role in digestion and waste excretion. 2. **Identifying Hydra's Body Cavity**: - Hydra, which belongs to the phylum Coelenterata (or Cnidaria), has a specific type of body cavity that serves as its gut. This cavity is essential for its feeding and waste removal processes. 3. **Analyzing the Options**: - **(a) Coelenteron**: This term refers to the central cavity of cnidarians, including Hydra. It serves as the digestive cavity. - **(b) Pseudocoel**: This is a type of body cavity that is not lined with mesoderm. Hydra does not possess a pseudocoel. - **(c) Enterocoel**: This type of body cavity is derived from the archenteron (the primitive gut) during embryonic development. Hydra does not have an enterocoel. - **(d) Haemocoel**: This is a body cavity that contains blood or circulatory fluid, typically found in some invertebrates. Hydra does not have a haemocoel. 4. **Conclusion**: - Based on the definitions and characteristics of each type of body cavity, the correct answer is **(a) Coelenteron**. This is the body cavity found in Hydra and other coelenterates. ### Final Answer: The body cavity of Hydra (Coelenterata) is known as **(a) Coelenteron**. ---
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