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Science CBSE Homework Assignments
Class 9
The fundamental unit of life
Discovery of cell
2.
Discovery of cell and cell number
Question:
3
m.
Match the column A with B:
Column A
Column B
1
.
Robert Brown
Lysosomes
Nucleus
peroxisomes
Mitochondria
2
.
Human body
5 millions cell die per second
1 millions cell die per second
6 millions cell die per second
2 millions cell die per second
3
.
Rudolf Virchow
Invented electron microscope
All cells arise from pre existing cells
He published the book of "Micrographia."
Father of immnology
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