Question

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Answer 1

Answer:

Q1. The missing number is 6.

Q2. Size of red blood cell =0.000007m = 7 × 10-6m

Size of red blood cell =0.000001275m= 1.275 × 10-5m

Therefore

7×10-6/1.275×10-5

0.000007/0.00001275

7/0.1275

1/2(approx) = 54.901

So a red blood cell is half of a plant cell in size.

(Picture for Q2)

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