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What system in starfish body helps them catch and hold their food?
The suckers on their tube feet are especially important. When a starfish finds prey, such as a snail, clam or oyster, it uses tube feet to capture it, then hold it close to its mouth. Once the prey is close and secure, the starfish pushes its stomach out through its mouth to digest the prey.
What type of symmetry do starfish have quizlet?
What type of symmetry did your starfish have? Radical Symmetry.
What type of symmetry did your starfish have?
Starfish typically show pentameral symmetry, and they are typically similar in shape to a pentagram. Although starfish can evolve and live with other numbers of arms, the dominant species always show pentameral symmetry.
In what phylum are starfish found quizlet?
Class Asteroidea, Phylum Echinodermata (spiny skin).
Are starfish radial or bilateral?
We concluded that starfish are slightly bilateral in behavior, and they are, to some extent, bilateral animals.
what system helps starfish catch and hold their food
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Class Asteroidea, Phylum Echinodermata (spiny skin).
In what phylum are starfish found?
Classification: Starfish are also referred to as sea stars because of their star-shaped appearance. They are a part of the phylum Echinodermata and are related to sand dollars, sea urchins, and sea cucumbers. Echinoderms are found in nearly all marine habitats and constitute a major proportion of the biomass.
How does the water vascular system help a starfish eat?
The water vascular system of echinoderms is essentially a system of fluid-filled canals that extend along each of the body regions and have many external projections called tube feet. There are several functions of the system, one of which is to use water pressure to mediate movement and assist in feeding.
Why can starfish move equally well in any direction?
By coordinating the pressure in their vascular system and the muscular movement of all their tube feet, sea stars can move equally well in any direction, climb things, and clamp themselves tightly to stay put.
What is the system of starfish?
The water vascular system of the starfish is a hydraulic system made up of a network of fluid-filled canals and is concerned with locomotion, adhesion, food manipulation and gas exchange. Water enters the system through the madreporite, a porous, often conspicuous, sieve-like ossicle on the aboral surface.
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