The goal of physical activity is to increase your heart rate to a certain rate. at that point, the exercise is considered active enough to be improving your health. true false

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

Will treating a viral infection with antibiotics affect the course of the infection? a) no; antibiotics work by inhibiting enzymes specific to bacteria. antibiotics have no effect on eukaryotic or virally encoded enzymes. b) no; antibiotics do not kill viruses because viruses do not have dna or rna. c) yes; antibiotics activate the immune system, and this decreases the severity of the infection. d) yes; antibiotics can prevent viral entry into the cell by binding to host-receptor proteins.

Will you get autism from being lonely?