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Mantle, foot and restricted coelom are the features of
Option: 1
Snail
Option: 2
Octopus
Option: 3
Sea slugs
Option: 4
All of these
Answers (1)
Body Plan of Mollusca:
- Molluscs are unsegmented animals.
- The body may have a covering of hard calcareous shell. The body can be distinguished into three different parts as:
- Head - sensory organs and mouth are present here
- Muscular foot - used for locomotion
- Visceral hump - dorsally placed and contains digestive system, excretory system and heart.
- There is a soft and spongy layer of skin over the visceral hump called mantle.
- This mantle secretes calcium carbonate shell on its outer surface.
- The space between the visceral hump and mantle is called mantle cavity. Gills are present in this cavity.
- The general body plan of molluscs can be shown as follows:
-
Mantle, foot and restricted coelom are the features of mollusca.
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