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Proterospongia is a connecting link between
  • a)
    Protozoa and porifera       
  • b)
    Porifera and coelenterata
  • c)
    Protozoa and annelida
  • d)
    Porifera and annelida
     
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Proterospongia is a connecting link betweena)Protozoa and poriferab)Po...
Proterospongia is a genus of a single-celled aquatic organism, which forms colonies. It belongs to the Choanoflagellate class of the protist kingdom. It is the connecting link between Protozoa and Porifera. Proterospongia colony resembles sponges closely.
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Most Upvoted Answer
Proterospongia is a connecting link betweena)Protozoa and poriferab)Po...
Proterospongia as a connecting link between Protozoa and Porifera
Proterospongia is considered a connecting link between Protozoa and Porifera due to certain characteristics that it exhibits, which show similarities with both groups.

Protozoa characteristics in Proterospongia
- Proterospongia exhibits certain characteristics that are typically seen in Protozoa, such as a single-celled structure and the ability to ingest food particles through phagocytosis.
- This single-celled structure is similar to many Protozoa species, which are also unicellular organisms.

Porifera characteristics in Proterospongia
- On the other hand, Proterospongia also shares certain characteristics with Porifera, such as a multicellular body organization and the presence of specialized cells like choanocytes, which are characteristic of sponges.
- The multicellular body organization in Proterospongia is more complex than that seen in Protozoa, resembling the multicellular structure of Porifera.

Conclusion
Thus, the presence of both Protozoa-like and Porifera-like characteristics in Proterospongia makes it a connecting link between these two groups. It exhibits features that are intermediate between Protozoa and Porifera, highlighting its position as a transitional form in the evolutionary history of these organisms.
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Proterospongia is a connecting link betweena)Protozoa and poriferab)Porifera and coelenteratac)Protozoa and annelidad)Porifera and annelidaCorrect answer is option 'A'. Can you explain this answer?
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