Venus’s flower basket is a
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Venus’s flower basket is a
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The only fresh water species of sponges is
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Skeleton of sponges is produced by
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Most common method of reproduction in sponges is
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Parazoa includes
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Bath sponge belongs to the class
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The term “head” in vertebrate morphology includes
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Which of the following organisms neither have notochord nor vertebral column in the adult stage?
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Paired segmental nerves have dorsal and ventral roots in
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Bilateral symmetry is seen in the body organisation of
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The three germ layers , namely ectoderm, endoderm and mesoderm are found in
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Which of the following is a characteristic chordate character?
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