<span>Stretching before and after a workout allows for less chance of pulled </span>muscles or injury.
<span>The main function of a mammary gland a female is :
-lactation
</span>
<span>Platelet is a term that is not used to refer to white blood cells. Platelets are the smallest of all blood cells, and make up a very small fraction of blood volume. The function of platelets is to prevent bleeding, whereas the function of white blood cells is to fight off infection and increase immunity to disease.</span>
Answer:
A. The atria are contracting and pushing blood into the bottom ventricles of the heart.
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