1 )define metamerism

2) which type of Skeleton present in Porifera

3) name the sensory organ present in arthropoda

4) what is Redula

5) what are parasitic adaptation in flatw

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Solution

The radula is an anatomical structure that is used by mollusks for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus.

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Organisms belonging to the phylum Arthropoda have characteristic jointed appendages. Other features include sensory organs and statocyst.

The statocyst present in some arthropods is used for

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