Jenny is running for more than an hour on a pleasant sunny morning. her body is sweating to maintain homeostasis, which is caused by the action of a/an .

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

Describe the potential effects, on people, of unprotected exposure to the sun.give an example of 1 new thing have you learned about the sun’s uv rays.

True or false. mucous membranes secrete mucus that traps pathogens.