Describe the typical shape of poriferans
Describe the typical shape of poriferans?
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Sponges contain bodies in the form of tubular vases or globes open in an upper extremity. They contain an internal central cavity and porous walls. The central cavity is termed as spongocoel and the opening in upper extremity is termed as osculum.
What are the three stages into which the cell respiration is classified?
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What kind of structure is crystalline lens? And also write down its function?
How striped pattern of striated muscle cells formed?
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State the constituent of the cartilaginous matrix?
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