Echinoderms definitions Flashcards

Marine deuterostomes with bilateral symmetry, an endoskeleton of calcareous plates, a water vascular system for movement and respiration, and tube feet for locomotion and feeding.

A marine echinoderm with radial symmetry, an endoskeleton of calcareous plates, and a water vascular system used for locomotion and feeding via tube feet.

Spiny-skinned echinoderms with a radial symmetry, internal skeleton of fused plates, and a water vascular system used for locomotion and feeding via tube feet.

Marine echinoderms resembling slugs, with leathery skin and an endoskeleton, using a water vascular system and tube feet for locomotion and feeding.

Flat, burrowing echinoderms with a rigid, disc-shaped endoskeleton, covered by tiny spines, and utilizing a water vascular system for movement and feeding.

Animals characterized by radial cleavage, formation of the anus from the blastopore, and an enterocoelous coelom, including echinoderms and chordates.

Having body symmetry where the organism can be divided into two equal halves along a single plane, typically resulting in mirror-image left and right sides.

An internal support structure made of calcified plates, often fused or connected by tissues, providing shape and protection, and covered by skin, as seen in echinoderms like starfish and sea urchins.

Calcareous structures forming the internal skeleton of echinoderms, which can fuse or be connected by tissues, resembling a knight's armor.

A network of fluid-filled tubes in echinoderms used for internal transport, respiration, and locomotion, enabling movement and feeding through extensions called tube feet.

Hydraulic extensions of the water vascular system in echinoderms, used for locomotion and feeding by moving fluid to create motion and trap prey.