Blood clots will do this. Cutting off blood flow while also increasing blood pressure. Also, if the viscosity (thickness of the blood) is thick which will slow down the flow and cause the body to use more effort to pump blood.
Answer:
the car with the normal gas.
Explanation:
control group is the part of an experiment that stays the same
D) the earthworm measurement is accurate because moore subtracted the beginning and ending points from the ruler
