The general function of lactase is to regulate cell processes. It is an enzyme, and enzymes act as catalysts of chemical reactions within the body. It regulates different chemical reactions including breakdown of food substances, etc.
The correct answer is macrophage.
<span>The macrophage is a type of white blood cells with phagocyte activity which means its main function is to “eat” foreign particles such as bacteria. A macrophage has the ability to locate those particles (viruses, parasites, fungi, bacteria) and do the cleanup.</span>
It's chief predator is the bat.
<span>The best place to test the pulse is just below the base of the thumb, on the wrist. This allows the person to continue their exercise while still being able to check the pulse rate and see if it has reached the level they are desiring.</span>