Skeleton is made up of ………. in porifera.
Spicules
Spongin
Both a and b
Chitin
Additional Questions
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Which animal has a cylindrical form |
Answer |
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Which type of thickening is found in protoxylem. |
Answer |
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Bulliform cells are found in the leaves of |
Answer |
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Which simple epithelium tissue cells are square in vertical sections and Polygonal in horizontal section |
Answer |
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Name the structure arranged on basement membrane in compound epithelium :- |
Answer |
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In the maize grain , the starchy food is stored in: |
Answer |
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A composite or multiple fruit develops from : |
Answer |
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Mouthparts of periplaneta are consist of ……….different types of articulations. |
Answer |
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Third segment of walking leg of Cockroach is………. . |
Answer |
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Who suggested that new cell arise through cell division of preexisting cells? |
Answer |