Answer: Skin
Explanation:
Level one of this system consists of physical barriers like your skin and the tears, sweat, saliva and mucous produced by the skin and mucosal lining are part of that physical barrier, too.
noun
1.
used in reference to an activity, cause, etc. that is currently fashionable or popular and attracting increasing support.
"the environmental bandwagon is feeling mighty crowded"
2.
(especially formerly) a wagon used for carrying a band in a parade or procession.
"the colorful bandwagon was later purchased for use in circus parades"
Safety: the condition of being protected from a certain risk
Answer:
It is a designation that a teacher has successfully completed a teacher-training course approved by the Yoga Alliance.
Explanation:
