Answer:
biology
Explanation: But physics is good too
It certainly does. If you mean this to be a true false question, then the answer is huge yes.
People with deficiencies in Red Blood Cells will certainly tell you that they are listless and can do very little work because they are not getting enough oxygen going through their bodies. They are not lazy, nor incompetent, because every activity is daunting because they just cannot do the work.
If this in not what you are looking for please leave a note.
The main one is actin. Actin in a protein that forms its molecules to form twisting chains into a helix formation. These proteins support the contraction of muscles.
Wastes from the blood leave the kidneys thru the ureter. From there the waste travels to the urinary bladder. Then the urethra carries liquid wastes from the urinary bladder to the outside of the body
