What is the difference between a sign and a symptom?  Provid…

What is the difference between a sign and a symptom?  Provide an example to illustrate the difference. (Please use proper sentence structure.  Grammar, punctuation, and spelling will be graded.) Be sure to use the appropriate terminology as given in our textbook and notes/lectures.

What is the difference between a mechanical vector and a bio…

What is the difference between a mechanical vector and a biological vector?  Provide an example of each type. (Please use proper sentence structure.  Grammar, punctuation, and spelling will be graded.) Be sure to use the appropriate terminology as given in our textbook and notes/lectures.