Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
The red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.
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<span>Phytochemicals
Phytochemicals are biologically active however they are non-nutrient because they are not required. But they are active biologically active in that some can be used to protect cells from oxidative damage in the form of antioxidants.</span>