Answer:It allows the red blood cell to contain more haemoglobin and, therefore, carry more oxygen molecules. It also allows the cell to have its distinctive bi-concave shape which aids diffusion. This shape would not be possible if the cell had a nucleus in the way.
Explanation:
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Answer:
its a man opening a door.
Explanation:
False, it should be used for all operation that can cause the finish product to be unsafe