Question

Q.27 What are the general characteristics of mollusca?​

Answer 1

Answer:

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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Answer 2

Explanation:

second largest phyla

largest Marine phyla

soft bodied animals

triploblastic

mostly bilateral symmetry

true body cavity - eucoelomate

tube within a tube body plan

organ system level of organization

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