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201. Rober B. Tolles is famous in microscopy for invention of
A. Diaphragm
B. Stage of the microscope
C. Oil immersion lens
D. Inbuilt illumination
Explanation:
202. Given below are assertion and reason. AssertionIt is important that organisms have cells. Reason A cell keeps its chemicals composition steady within its boundary.
A. Both are true with reason being correct explanation
B. Both true but reason is not correct explanation
C. Assertion is true but reason is wrong
D. Both are wrong
Explanation:
203. Longest cells in human body are
A. Nerve cells
B. Bone cells
C. Leg muscle cells
D. Heart muscle cells
Explanation:
204. Minimum cell size seen under light microscope is
A. 1 μm
B. 0.1 μm
C. 0.25 μm
D. 0.5 μm
Explanation:
205. Living beings are made up of cells. This was first stated by
A. Lamarck
B. Von Helmont
C. Schleiden and Schwann
D. Hugo de Vries
Explanation:
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