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: Free certification app 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; 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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