Question

Which of the following is a fresh water sponge?

• A. Sycon
• B. Spongilla
• C. Euspongia
• D. Fresh water sponge i

Hint:

Spongilla is a common freshwater sponge found in clean aquatic environments, whereas Sycon and Euspongia are marine sponges. Understanding the habitat is key to identifying the type of sponge.

Answer 1

The Correct Option is B

- Sycon: Sycon, also known as the Scypha, is a type of marine sponge, not a fresh water species. While it shares many characteristics with freshwater sponges, it is found in the marine environment, so this option is incorrect.
- Spongilla: This is the correct answer. Spongilla is a genus of freshwater sponges. These sponges are typically found in clean, freshwater environments such as lakes, ponds, and streams. They have a distinctive appearance and are a key part of aquatic ecosystems.
- Euspongia: Euspongia, also known as the "bath sponge," is a type of sponge found in marine environments. This is also not a freshwater species and is used commercially for its soft texture.
- Fresh water sponge: This is not a scientific term, and the phrase is merely a translation of "Spongilla" in Hindi. Therefore, this option is incorrect.
Thus, the correct answer is Spongilla (b), as it is the genus of freshwater sponges.