What do radio waves and sound waves have in common? a) Both waves are transverse waves.
b) Both waves are mechanical waves.
c) Both waves transfer energy.
d) Both waves need a medium.

i do not get it   at all

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".