Question

Hailey is writing about the anatomy of the human body. She identifies that most of the human body is water. What conclusion can she draw from this fact?
A. The human body is the main element in the Carbon cycle.

B. The human body is the main element in the oxygen cycle.

C. The human body contains large amounts of oxygen.

D. The human body contains high level of carbon.

E. The human body is subject to chemical process

Answer 1

the answer is e : the human body is subject to chemical change

Answer 2

Most of the Human body is water. This concludes the human body is subject to chemical processes. Either the water is utilised in the human body to carry out different processes or is being produced during the reactions.

Example- when we drink water it is being utilised or absorbed by the intestine and helps to circulate materials in the whole body in the form of fluids like blood. It helps to maintain homeostasis when the body temperature rises.

In the process of cellular respiration, the break down of sugar occurs in presence of oxygen and the water is removed in this reaction.

Almost all the chemical reactions which occurred in human body involves the use of water or expelled water after the reaction takes place.