Biology 9th Chap 4 : Topic 6 - Maryam Publications

Biology Chapter 4 : Topic 6

Advantages of Homeostasis

1 / 10

What is the main advantage of homeostasis in living organisms?

A) It stops all body functions

B) It reduces energy use to zero

C) It increases body size rapidly

D) It maintains a stable internal environment

2 / 10

Which condition is directly regulated by homeostasis?

A) Number of cells

B) Body colour

C) Shape of bones

D) Blood pressure

3 / 10

Why is body temperature control an advantage of homeostasis?

A) It increases sweating permanently

B) It allows enzymes to work efficiently

C) It stops respiration

D) It helps in digestion only

4 / 10

How does homeostasis benefit enzyme activity in the body?

A) By stopping enzyme production

B) By destroying enzymes

C) By maintaining optimal conditions for enzyme function

D) By changing enzyme structure randomly

5 / 10

What happens if homeostasis fails in the human body?

A) Body functions become more efficient

B) internal conditions remain stable

C) Energy production increases indefinitely

D) Cells and organs may stop functioning properly

6 / 10

Which of the following is an example of homeostasis in action?

A) Digestion of food

B) Formation of bones

C) Growth of hair

D) Sweating to cool the body

7 / 10

Homeostasis mainly helps organisms to:

A) Stop responding to environment

B) Adapt permanently to one condition

C) Increase randomness in body functions

D) Maintain constant internal balance

8 / 10

Which internal factor is controlled by homeostasis?

A) Blood glucose level

B) Eye colour

C) Hair colour

D) Finger shape

9 / 10

Why is homeostasis important for survival?

A) It eliminates all body systems

B) It allows uncontrolled changes in the body

C) It stops metabolism completely

D) It maintains conditions necessary for cell survival

10 / 10

Which statement best describes the advantage of homeostasis?

A) It makes organisms dependent on external changes

B) It removes all biological processes

C) It maintains a constant internal environment for proper functioning

D) It increases external environmental effects

Your score is

0%