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COORDINATION AND RESPONSES

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What are the main systems in the body that involved in homeostasis ?

a)

Digestive system and endocrine system

b)

Endocrine system and excretory system

c)

Respiratory system and skeletal system

d)

Skeletal system and excretory system

2.

Which of the following organisms can maintain body temperature, even though the temperature in the surroundings changes significantly?

a)

Toad

b)

Fish

c)

Egret

d)

Crocodile

3.

Which of the following process involves water loss to the surroundings by the plants ?

a)

Evaporation

b)

Respiration

c)

Transpiration

d)

Photosynthesis

4.

Which of the following statements is the best to explain the need for homeostasis to the organism ?

a)

Avoid sudden death

b)

Maintain constant body temperature

c)

Ensure that all enzymes involved in chemical reactions work well

d)

Provides optimum internal environment for efficient metabolic activity

5.

What is the corrective mechanism occurred when body temperature decrease from the normal ?

a)

Sweating

b)

Hair bends

c)

Blood vessels will contract

d)

The skeletal muscles are not active

6.

Which of the following act is true for reptiles with the changes in hot weather ?

a)

Slow heartbeat

b)

Fast heartbeat

c)

Low rate of metabolism

d)

Slower movement

7.

Which of the following act is true for reptiles during the changes in cold weather ?

a)

Increases heartbeat

b)

Increases the rate of metabolism

c)

Faster movement

d)

Slower movement

8.

How do plants reduce water loss ?

a)

Bigger leaf surface

b)

The plant rolls up its leaves

c)

The larger number of stoma on the top of the leaf surface

9.

Adam measures his pulse rate before running. What is the changes on his pulse rate after running ?

a)

Increases

b)

Decreases

c)

No changes

10.

Shivering in the cold produces heat in the body.

a)

True

b)

False

11.

What body system is involved in the correction mechanisms experienced by Suzana when her body releases more sweat?

a)

Excreation system

b)

Blood circulatory system

c)

Digestive system

d)

Respirotary system

12.

Which of the following helps in the regulation of body temperature?

a)

Brain

b)

Lung

c)

Stomach

d)

Liver

13.

When performing active activities such as running 100m, the heart rate increases faster than in rest. Which of the following statements accurately describes this situation?

a)

Keep the body temperature constant

b)

Maintain water content in the body

c)

More oxygen can be forced into the lungs

d)

Ensure that all parts of the body receive the supply of oxygen and nutrients quickly

14.

Which of the following organisms can maintain body temperature, even though the temperature in the surroundings changes significantly?

a)

Toad

b)

Crocodile

c)

Fish

d)

Elephant

15.

Aiman is basking under sunlight. Which of the following is the corrective mechanism faced by Aiman?

a)

Skeletal muscles contract and relax actively

b)

Hairs stand erect

c)

Blood vessels dilate

d)

Decrease sweating