What protect internal organs that are connected with the outside of the body by secreting a sticky fluild

Religion can people engage in healthier behavior but in the meanwhile it can also harm health. true or false

When a freind is not tellig you everything you should a: bug them till they tell you b: ask them polietly to tell you c; stay silent your whole life d leave them they will tell you on there own time

If something is painful during exercise, what should you do? a. back off the exercise. b. modify the exercise. c. consult a physician if the pain persists. d. all of the above