Answer:
Pertussis.
Explanation:
Vaccine is given as the preventable measure for the particular disease. Vaccine may contain the weakened or killed antigen, the epitope part of any antigen and the particular DNA or protein.
Pertussis is also known as whooping cough that affects the respiratory system of an individual and can cause pneumonia as well. The vaccine for the pertussis is available in the hospitals for the prevention of pertussis in the future generation.
Thus, the correct answer is pertussis.
Ans.
TEM or transmission electron microscopy is a microscopy method, which uses an electrons' beam to enlarge image of a specimen. It provides two-dimensional images of internal structures or organelles of cells.
As TEM is used to study internal structures of cells, only dead specimens can be used for study. TEM provides high magnification than conventional light microscope.
Thus, the correct answer is 'option C). internal structures of a cell.'
In scientific notion: 3.134 x 10^9
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