Proterospongia is link between

Options

A. Sponges and coelenteres
B. Coelenterates and ashelminthes
C. Protists and sponges
D. Protista and coelenterates.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about Proterospongia and what it serves as a link between. We need to identify the organisms or groups that Proterospongia connects.

2. **Analyzing the Options**: The options provided are:
- A) Sponges and Cnidarians
- B) Cnidarians and Escalamitas
- C) Protists and Sponges
- D) Protista and Cnidaria

3. **Breaking Down the Name**: The name "Proterospongia" can be dissected into two parts:
- "Protero" refers to Protista (a kingdom of unicellular eukaryotes).
- "Spongia" refers to sponges, which belong to the phylum Porifera in the animal kingdom.

4. **Identifying the Link**: Since Proterospongia has components of both Protista and Sponges, it indicates a connection between these two groups. Proterospongia is considered a transitional form that exhibits characteristics of both protists (unicellular eukaryotes) and sponges (multicellular organisms).

5. **Selecting the Correct Option**: Based on the analysis, the correct answer is option C: Protists and Sponges.

**Final Answer**: Proterospongia is a link between Protists and Sponges.

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