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The body of sponges does not possess tis...

The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment

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Cellular level organisation is seen the cells of sponge are not arranged in tissues. However thousands of cells are arranged independently in groups. Cells work functionally as single or in colonies independently in more or less amount. Cells show distribution of worn for doing specific works.
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KUMAR PRAKASHAN-STRUCTURAL ORGANISATION IN ANIMALS-SECTION-E (SOLUTION OF NCERT EXEMPLAR) (SHORT ANSWER TYPE QUESTIONS)
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  2. Frogs are beneficial for mankind, justify the statement.

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  3. The body of sponges does not possess tissue level of organisation thou...

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  4. Structural organisation in animals attains different levels as cell-or...

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  5. Stratified epithelial cells have limited role in secretion. Justify th...

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  6. How does a gap junction facilitate intercellular communication ?

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  12. Why nephridia in earthworm that are basically similar in structure cla...

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  16. Frog is a poikilotherm, exhibits camouflage and undergoes aestivation ...

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  17. Write the functions in brief in column II, appropriate to the structur...

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  18. Write the appropriate type of tissues in column II according to the fu...

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