Select the option which shows the correct combination of a phylum and its characteristic feature.

Moderate

A

Chordata - They possess a pre-anal tail and a closed circulatory system
B

Echinodermata - An excretory tube removes body wastes from the body cavity through the excretory pore
C

Arthropoda - Mantle cavity has feather like gills with respiratory and excretory functions
D

Hemichordata - They have a rudimentary structure called stomochord

Solution

Stomochord is a buccal diverticulum in the members of Hemichordata.
Post-anal tail is present in chordates.
Excretory structure is absent in echinoderms.
Feather like gills are a feature of molluscs.

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