Question

Why axial gland is consider as a heart of echainoderms?

Answer 1

hey!!
^_^

▪Asterias: An Example of Phylum Echinodermata ..... The haemal plexus of the axial gland is regarded as the 'heart' of the haemal syste

Answer 2

hye!

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↪The axial organ, a complex and elongated mass of tissue found in all echinoderms except holothurians.

↪this will represents the common junction of the perivisceral coelom, the water vascular system and the hemal system.