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True. When access to clean water and sanitation is not provided, the health of the population is at risk for disease.
Preventative Medicine.
The profession of preventive medicine involves encouraging preventative health care to enhance patient wellbeing. The ultimate objective is to avert illness, incapacity, and death. Licensed preventive medicine doctors who are specialists in the field include:
- Doctors of medicine (MD)
- Specialists in osteopathy (DO)
These experts assess patients and provide preventative care as a result of their proficiency in a variety of medical specialties, such as:
- Biostatistics
- Epidemiology
- Planning and monitoring health care performance
- Health care organization management
- Research
- Practice of preventive medicine in clinical settings
Through illness prevention and health promotion, they use their knowledge of medicine, social, economic, and behavioral sciences to enhance the health and quality of life for people, families, communities, and populations.
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Epithelial tissue covers the body surface and forms the lining for most internal cavities. The major function of epithelial tissue includes protection, secretion, absorption, and filtration. The skin is an organ made up of epithelial tissue which protects the body from dirt, dust, bacteria and other microbes that may be harmful. Cells of the epithelial tissue have different shapes as shown on the student's worksheet. Cells can be thin, flat to cubic to elongated. Cited from: https://www.msnucleus.org/membership/html/k-6/lc/humanbio/4/lchb4_3a.html