What is the purpose of the indentation in the of red blood cells

The purpose of the indentation in the center of a red blood cell is: Increase the carrying capacity of the cell. The purpose of the indentation in the center of a red blood cell is: Increase the carrying capacity of the cell. This answer has been confirmed as correct and helpful

answer; (b); it becomes

a. possible errors

d. new questions

explanation:

predictions and planning happen before. a summery comes after. errors you get after investigation and new questions propose what you can look for in the future.