Pathogens are microorganisms - such as bacteria and viruses - that cause disease. Bacteria release toxins and viruses damage our cells. White blood cells can ingest and destroy pathogens. They can produce antibodies to destroy pathogens, and antitoxins to neutralize toxins
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The Sun *emits* white light, which is actually a composite of all of the visible frequencies of light. (A prism shows you the visible frequencies of white light.) The distribution of solar frequencies is uneven, the most intense frequency is in the yellow-green part of the spectrum.
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The elephant is getting Energy
<span><span>A plant that, when self-fertilized, only produces offspring with the same traits.</span></span>
The enzyme catalyzes (speeds up) the rate at which the substrate is broken down.
