CBSE Class 7 Science Life Processes in Animals (Class 7 NCERT New) Quiz 3

1. Assertion: Inhalation is caused by the expansion of the chest cavity. Reason: The diaphragm contracts during inhalation.

A Both A and R are true and R is the correct explanation of A B A is false, but R is true C A is true, but R is false D Both A and R are true, but R is not the correct explanation of A

2. Assertion: Oxygen is the final product of respiration. Reason: Respiration produces water, carbon dioxide, and energy.

A A is true, but R is false B Both A and R are true and R is the correct explanation of A C Both A and R are true, but R is not the correct explanation of A D A is false, but R is true

3. The long tube that carries food from the mouth to the stomach is called the _____.

A Pharynx B Trachea C Intestine D Oesophagus

4. The _____ system is responsible for taking in oxygen and removing carbon dioxide from the body.

A Digestive B Nervous C Respiratory D Circulatory

5. The body part where undigested food is stored temporarily before being removed is the _____.

A Stomach B Rectum C Pancreas D Intestine

6. The contraction and relaxation of the _____ helps in breathing.

A Heart B Ribs C Diaphragm D Lungs

7. The final stage of digestion, where undigested material is removed, is called _____.

A Digestion B Egestion C Ingestion D Absorption

8. Digestion of starch starts in the _____.

A Small intestine B Stomach C Mouth D Large intestine

9. The ruminants bring back swallowed grass into their mouth and chew it for some time. True or False?

A Not sure B False C Depends on the animal D True

10. The large intestine is longer and broader than the small intestine of the human alimentary canal. True or False?

A True B False C Not applicable D Only in some cases