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Question
Which of the following is a peculiar characteristics of molluscs?
Which of the following is a peculiar characteristics of molluscs?
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Solution
The correct option is D Osphradium
Madreporite is a sieve-like plate in certain echinoderms through which water passes into the vascular system.
Tube feet are many small tubular projections found most famously on the oral face of a sea star's arms but are characteristic of the water vascular system of the echinoderm phylum.
In sea stars, the radial canal has four or five pairs of complex pouches called Teidmann's bodies.
The osphradium is an olfactory organ in certain molluscs linked with the respiration organ.
So, the correct answer is option D.
Madreporite is a sieve-like plate in certain echinoderms through which water passes into the vascular system.
Tube feet are many small tubular projections found most famously on the oral face of a sea star's arms but are characteristic of the water vascular system of the echinoderm phylum.
In sea stars, the radial canal has four or five pairs of complex pouches called Teidmann's bodies.
The osphradium is an olfactory organ in certain molluscs linked with the respiration organ.
So, the correct answer is option D.
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