Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? because the model makes the concepts easier to understand because the model is easy to put together and to use because the model prevents other scientists from asking questions because the model requires the audience to pay full attention to it

Because the model makes the concepts easier to understand.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".