The maintaining of blood pH in a certain range to main the functioning of all the physiological processes is an example of homeostasis.
What is homeostasis?
Homeostasis is derived from Greek words which mean same or steady and that is exactly what it means. The various methods by which all the functions of the body are maintained in a required range are called homeostasis.
This term was defined by Walter Cannon in the year 1930. Simply speaking, homeostasis refers to the methods which maintain a steady state in the body.
The various measures of proper body functioning are temperature, blood pH, sugar, protein, oxygen etc. There is a defined range in which all these substances should be present in the body.
A deviation from that indicates that there is some issue with some body function. For example, a deviation from the normal level of sugar could indicate diabetes.
Therefore, maintaining blood in a certain pH range is an example of homeostasis and the correct option is A.
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