What is an advantage of mri over an x-ray?

a. it produces better images of hard tissue

b. it requires large equipment

c. it shows only external structure

d. it uses no radiation

Joe has been suffering from asthma since childhood. recently, a severe asthma attack struck, after which he has been finding it difficult to breathe normally. what can ease his condition?

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

If a person has a bad pain in their back, specifically lower back a bit above the hip, what should they do besides going to the doctor? what remedies could they use?