Which of these should be reportable diseases to protect public health? HIV is the answer

Is it considered muscles' ennervation if the sympathetic fibers innervate vessels within the muscle ? (vasomotricity)

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

What are your best tips for staying focused and staying on task to finish something?