Please resubmit Q: Even sounding it out, a mucous membrane is a moist surface exposed to the environment (nasal / oral passages, vagina...). A bodily fluid is just that, any moist / liquid created by a human: tears, saliva, mucus, urine, semen, stool, vomit...). If this does not happen to cover your question, please re-ask with more detail.
Answered 3/20/2014
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