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=In text questions page number 59

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=In text questions page number 63

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In text questions page number 59

In text questions page number 59

1. Who discovered cells, and how?
Answer: Robert Hooke discovered the cells. He saw that the cork resembled the structure of a honeycomb consisting of many little compartments. Cork is a substance which comes from the bark of a tree. This was in the year 1665 when Hooke made this chance observation through a self-designed microscope. Robert Hooke called these boxes cells. In this way he discovered the cells.

2. Why is the cell called the structural and functional unit of life?
Answer: Cells are called the structural and functional unit of life because all the living organisms are made up of cells and also all the functions taking place inside the body of organisms are performed by cells.



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In text questions page number 59

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