Question

write about charecters of arthropod and mollusca​

Answer 1

⭐solUtioN:-⭐

Characteristics of Arthropods

• A segmented body (Figure below) with a head, a thorax, and abdomen segments.
• Appendages on at least one segment. ...
• A nervous system.
• A hard exoskeleton made of chitin, which gives them physical protection and resistance to drying out.

Mollusca Characteristics

• They are mostly found in marine and freshwater. ...
• They exhibit organ system level of organization.
• Their body has a cavity.
• The body is divided into head, visceral mass, muscular foot and mantle.
• The head comprises of tentacles and compound eyes.
• The body is covered by a calcareous shell.

Answer 2

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write about charecters of arthropod and mollusca

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The most general characteristic of molluscs is they are unsegmented and bilaterally symmetrical. The following are present in all modern molluscs: The dorsal part of the body wall is a mantle (or pallium) which secretes calcareous spicules, plates or shells.

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