Question

b.
. Explain with reasons.
a. Human blood is red coloured.
b. Upward and downward movement of
diaphragm occurs consecutively.
c. Blood donation is considered to be
superior of all donations.
d. Person with 'O' blood group is considered
as 'universal donor'.
e. Food must have limited amount of salts.​

Answer 1

Answer:

because of hemoglobin present and red blood cells,

Answer 2

Answer:

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