Answer:The Cell Membrane. All living cells and many of the tiny organelles internal to cells are bounded by thin membranes. These membranes are composed primarily of phospholipids and proteins and are typically described as phospholipid bi-layers.
This is a question from florida national university nursing program the options of question were
A. Construct validity B. Face validity C. Content validity D. Criterion validity
By looking at options as well s question we know salivary cotinine levels is not tested for validating outer appearances like face or construct and gold standard is not a standard for content validity so eliminating other options we are left with opton
D. Criterion validity which is the correct answer
It would be answer 1 nucleus
The smallest unit that has the basics of life
