Which one possesses radial symmetrya)Star Fishb)Apple Snailc)Frogd)PigeonCorrect answer is option 'A'. Can you explain this answer?

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Answer

Star fish ..... adult echinoderms have radial symmetry

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Bro  common sense ka use bhi krlo thoda

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Starfish are animals that live in salt water there can live also any where in the world ocean  including both cold and warm location ther are invertebrates which means there have no backbone they are also echinoderms which means they have spiny or bumpy skin

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Star fish because arrangement single main axis se bahot similar half ho skte h

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Cut from any axis we get equal symmetry.

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Star fish .

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The bipinnaria larva of the starfish is bilaterally symmetrical and only takes on the apparent radial symmetry as an adult. Because of the off-center location of the madreporite.

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The correct answer is starfish

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Starfish

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Radial symmetry is a type of symmetry found in certain organisms where the body parts are arranged around a central axis, much like the spokes of a wheel. This type of symmetry allows the organism to be divided into similar halves by any plane passing through the central axis. Among the given options, the organism that possesses radial symmetry is the Starfish.

- Starfish:
A starfish, also known as a sea star, is a marine invertebrate that belongs to the phylum Echinodermata. It has a distinct body shape with multiple arms radiating from a central disc. These arms are arranged symmetrically around the oral (mouth) region, giving the starfish its characteristic radial symmetry.

The arms of a starfish are typically elongated and have a flexible structure, allowing the animal to move and catch prey. Each arm contains numerous tube feet that the starfish uses for locomotion and to capture food. The mouth is located on the underside of the central disc, while the upper surface is covered with a rough, spiny skin.

- Apple Snail:
The apple snail, also known as Pomacea canaliculata, is a freshwater snail that belongs to the phylum Mollusca. Unlike starfish, apple snails do not possess radial symmetry. They have a coiled shell and a distinct head region with eyes and tentacles, which are not arranged symmetrically around a central axis.

- Frog:
Frogs, belonging to the class Amphibia, are vertebrates that do not possess radial symmetry. They have a bilateral body plan, which means their body can be divided into two similar halves only by a single plane passing through the midline.

- Pigeon:
Pigeons, belonging to the class Aves, also do not possess radial symmetry. They have a bilateral body plan like most birds, with distinct left and right sides that are not symmetrical around a central axis.

In conclusion, among the given options, the organism that possesses radial symmetry is the starfish. Its body parts, in the form of arms, are arranged symmetrically around a central disc, allowing it to be divided into similar halves by any plane passing through the central axis.

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