Class 7 Science MCQs - Chapter 12
Human Transport System Trivia Questions & Answers PDF Download - 4
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The Human transport system Trivia Questions and Answers PDF (Human Transport System Quiz Answers PDF e-Book) download Ch. 12-4 to study Grade 7 Science Course. Practice What are White Blood Cells MCQ PDF, Human Transport System Quiz Questions and Answers to study online school courses. The Human Transport System Trivia App Download: Grade 7 Science Study App [Free] for what are white blood cells, what is blood, blood circulation, what are red blood cells test prep for online schools.
The Quiz: The task of white blood cells is to; "Human Transport System" App APK Download with answers: transport oxygen, defend a body from disease, heal wounds, and refresh heart to study online school courses. Practice What are White Blood Cells MCQ Questions, download Kindle eBook (Free Sample) for distance learning.
Human Transport System Test Questions and Answers PDF Download: MCQ 4
The task of white blood cells is to
- defend a body from disease
- transport oxygen
- heal wounds
- refresh heart
Yellow pus in the wound is actually
- red blood cells
- plasma
- platelets
- infected white blood cells
The deoxygenated blood is pumped to
- arteries
- lungs from heart
- heart from lungs
- veins
The life span of red blood cells is about
- 100 days
- 200 days
- 300 days
- 400 days
If bacteria are taken over by white blood cells, their life span
- decreases
- increases
- remains same
- may increase or decrease
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