Skin is the main barrier between internal organs and the outside environment. The outer layer of skin is composed mostly of epithelial cells. Which is a characteristic of epithelial cells that makes them ideal for providing this type of protection?

Create a personal plan of preventative health and dental management. what steps can you take to maintain your health and wellness? (here's the edg answer because i can't comment) it is important to see my doctor regularly for an annual checkup. i will ensure that i receive all vaccinations so that i can prevent serious diseases such as mumps and measles. i will also perform monthly self-exams to check for lumps so that i can detect cancer early. i will visit my dentist twice a year for cleanings, and once a year for a dental exam, so that problems such as cavities can be taken care of promptly.

Which food would be considered to be a nutrient-poor snack choice? low fat yougurt, nuts and raisins, fruit filled doughnut, raw vegetables

The circulation brings carbon dioxide-filled blood to the lungs