Explain with reasons.a. Human blood is red colured.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.

Explain with reasons.a. Human blood is red colured.b. Upward and downw

1.	Explain with reasons.a. Human blood is red colured.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» Explain with reasons. a. Human blood is red colured. 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.