Class 7 Science MCQs (Grade 7) From Textbook
Human Transport System Notes App Free Download | Class 7 Science e-Book PDF
Class 7 Science Exam MCQs – Practice Test 4 (Chapter 12)
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The task of white blood cells is to
Yellow pus in the wound is actually
The deoxygenated blood is pumped to
The life span of red blood cells is about
If bacteria are taken over by white blood cells, their life span
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