The eyes and the respiratory tract are both protected against infections by Group of answer choices interferons produced by immune cells. the secretion of lysozyme onto their surfaces. the release of slightly alkaline secretions. the secretion of complement proteins. the mucous membranes that cover their surface.

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other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. the si derived unitsfor these derived quantities are obtained from these equations and the seven si base units.

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