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 maintains a stable internal environment

B) It increases body size rapidly

C) It reduces energy use to zero

D) It stops all body functions

2 / 10

Which condition is directly regulated by homeostasis?

A) Body colour

B) Shape of bones

C) Blood pressure

D) Number of cells

3 / 10

Why is body temperature control an advantage of homeostasis?

A) It allows enzymes to work efficiently

B) It helps in digestion only

C) It stops respiration

D) It increases sweating permanently

4 / 10

How does homeostasis benefit enzyme activity in the body?

A) By changing enzyme structure randomly

B) By stopping enzyme production

C) By maintaining optimal conditions for enzyme function

D) By destroying enzymes

5 / 10

What happens if homeostasis fails in the human body?

A) Cells and organs may stop functioning properly

B) Body functions become more efficient

C) Energy production increases indefinitely

D) internal conditions remain stable

6 / 10

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

A) Formation of bones

B) Digestion of food

C) Sweating to cool the body

D) Growth of hair

7 / 10

Homeostasis mainly helps organisms to:

A) Increase randomness in body functions

B) Stop responding to environment

C) Adapt permanently to one condition

D) Maintain constant internal balance

8 / 10

Which internal factor is controlled by homeostasis?

A) Finger shape

B) Hair colour

C) Blood glucose level

D) Eye colour

9 / 10

Why is homeostasis important for survival?

A) It maintains conditions necessary for cell survival

B) It stops metabolism completely

C) It eliminates all body systems

D) It allows uncontrolled changes in the body

10 / 10

Which statement best describes the advantage of homeostasis?

A) It increases external environmental effects

B) It maintains a constant internal environment for proper functioning

C) It removes all biological processes

D) It makes organisms dependent on external changes

Your score is

0%