Class 9 Biology MCQs – Certification Test 122

Red Blood Cells MCQs (Question 122) – App & e-Book Download

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MCQ 122: In females, the number of red blood cells in one cubic millimeter of blood are:

1 to 2 million
2 to 3 million
4 to 4.5 million
4.5 to 5.5 million

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