Exercise increases the release of this hormone, which is responsible for feelings of happiness and well-being. a. eustress b. endorphins c. melatonin d. progesterone

Why is sustainable agriculture so important?

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.

What is a negative influence on community health? a: national health debt b: citizens who drive unsafely c: unreliable public transportation d: stores that sell tobacco to minors