Choanocytes in sponges are present
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Choanocytes in sponges are present
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Most of the sponges are
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Gemmules are helpful in
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Larva of sponge is known as
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Animal of phylum Porifera are characterised by
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A sponge can be distinguished from other animals by the presence of
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Which of the following combination of phylum and description is incorrect?
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Most marsupial and all monotreme species today, are found in:
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Mammals and living birds share all of the following characteristics except
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Which of the following characteristic is probably most responsible for the great diversification of insects on land?
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Acoelomates are characterized by
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The water vascular system of echinoderms
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