Answer:
C). Edward Jenner
Explanation:
Vaccination is the approach that involves the activation of the adaptive immune response of humans. The provided vaccine contains the killed or weekend micro-organism which is given to the patient which activates the immune system of the patient.
The activated immune response provides protection against the related pathogen which was observed by the English practitioner Edward Jenner when he observed that the person infected with the cowpox was not infected with smallpox. He called this process as vaccination.
Thus, Edward Jenner is the correct answer.
all organisms need glucose ans a source of energy or oxygen
The Central Nervous System is made up of the brain and the spinal cord.
Answer:
Fraction-of-occurrences of 115In isotope
Explanation:
As we know weight of 113 In isotope is equal to the sum of product of fraction-of-occurrences of two constituents isotopes and their atomic weight
------(1)
As we know sum of fraction-of-occurrences of two constituents isotopes is equal to one.
---------(2)
Substituting the given values in equation 1, we get
Substituting this value in equation 2 we get -