Class 8 Science MCQs - Chapter 9
Respiration and Circulation Quiz Questions & Answers PDF Download - 3
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Respiration and Circulation Exam Questions and Answers PDF Download: Test 3
The larger blood vessels which carry blood back to heart are
- arteries
- veins
- valves
- capillaries
Insects breath through small holes in their body called
- lungs
- air sacs
- stomata
- spiracles
The external part of nose through which air enters is called
- trachea
- alveoli
- nostril
- bronchi
The air which we breathe in is called
- inhaled air
- exhaled air
- circulated air
- deoxygenated air
The blood is mixture of
- red and blood cells
- plasma
- platelets
- all of them
Class 8 Science Mock Tests
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