Which of the following shows the path followed by nerve impulses in a reflex? a. motor neurons → interneurons in brain → sensory neurons b. sensory neurons → interneurons in brain → motor neurons c. motor neurons → interneurons in spinal cord → sensory neurons d. sensory neurons → interneurons in spinal cord → motor neurons

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".