Two-layered blastoderm epiblast and hypoblast is joined together at the marginal zone of the area opaca, and the space between the layer's forms ____

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#Question id: 18861

#Unit 13. Methods in Biology

Which component of the compound microscope aids in the collecting and focussing of light rays on the material to be examined?

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#Question id: 18862

#Unit 13. Methods in Biology

What is the shortest distance that the eye must go to concentrate on any object?

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#Question id: 18863

#Unit 13. Methods in Biology

A microscopes resolving power is a function of-

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#Question id: 18864

#Unit 13. Methods in Biology

In light microscopy, the highest resolution is attained with-

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#Question id: 18865

#Unit 13. Methods in Biology

The NA value of an oil immersion objective lens is___________.

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#Question id: 18866

#Unit 13. Methods in Biology

In fluorescence microscopy, which of the following controls the removal of all light except blue light?