Question

starfish bwlong to which phylum and give onw reason for its placement​

Answer 1

{Starfish belongs to echinoderms plylums}

Answer 2

starfish belong to the phylum echinodermata

Kingdom: Animalia

Habitat: These are exclusively marine

Grade of organization: organ system grade

Germ layer: triploblastic

Symmetry: Adults are radially symmetrical while the larvae are bilaterally symmetrical.

Coelom: present ( coelomate)

Body without segmentation

The shape of the body is flat, star like, spherical or elongated.

Head is absent

Presence of tube feet

Respiration: by papule, gills or clocal respiratory tree

Nervous system: absent, they are brainless organism.

Circulatory system: is reduced, heart is absent

Blood has no pigment.

Digestive system: complete

Excretory system: absent

Sexual: by gamatic fusion

Asexual: regeneration

Fertilization: external

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