Answer:
When studying the human body, student may experience the following difficulties:
- Learning while keeping up (This is a hard topic to learn at school)
- Maturity (Some words and phrases may innapropriate and reactions would be immature)
Hopefully this helps! Feel free to mark brainliest!
Answer:
surgeon
Explanation:
some even make 200,000 a year
Anatomical and physiological barriers provide the crucial first line of defense against pathogens. These barriers include intact skin, vigorous mucociliary clearance mechanisms, low stomach pH and bacteriolytic lysozyme in tears, saliva and other secretions.
