SSC MTS 2024 PYQ — Question 61

The correct answer is option 1 i.e. Annelida.

Phylum Annelida includes animals with a segmented body, meaning their bodies are divided into repetitive segments, both externally and internally. Examples include earthworms, leeches, and polychaetes. These organisms have a true coelom, a closed circulatory system, and a well-developed nervous system. Segmentation allows for greater flexibility and efficient movement. Other phyla, such as Arthropoda, also show segmentation, but Annelida is characterised by soft, cylindrical, and bilaterally symmetrical bodies with distinct segmental division, making segmentation one of its defining features in the animal kingdom.