Question

37 a)Why are living organisms classined
b) What is the nature of cell wall in diatoms?
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Answer 1

Answer:

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Explanation:

b). Their walls are made up of silica. The dead and decomposed diatoms deposit the sillica present in their walls in form of diatomaceous earth. This diatomaceous earth is very soft and quite inert.

Answer 2

(a) Thus, various groups or taxon include organisms based on their similarity and differences. ... Therefore, the biological classification helps in revealing the relationship between various organisms. It also helps in making study of organisms easy and organized.

(b) The process of cell walls construction of diatoms is known as Frustule. It has two thin overlapping shells fitting into each other just as a soap-box. Their walls are made up of silica. The dead and decomposed diatoms deposit the sillica present in their walls in form of diatomaceous earth.

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