C) it regulates what goes in and out of the cell
Usually the membrane is the organelles that acts like a door. They decide what type of nutrients and molecules go into the cell.
Answer:
The balloon drifts in a counterclockwise direction from 9:00 a.m. to 12 (Midnight) 3.
The circulatory system - hemoglobin in the blood transports oxygen :)
Hello,
The prpuse of protiens is to help keep your body healthy and also it is to Repair anything broken torn or Fractred or Sprained
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