Which are characteristics of epithelial cells? Select two options. ( ANSWER ASAP PLEAS) are unable to be used for secretion of materials
main cells of the nervous system
found lining many areas that contact the external environment
plays a role in protection
carry oxygen through the body
make up the skeletal muscle

The characteristics of epithelial cells include they are found lining many

areas that contact the external environment and play a role in protection.

Epithelial cells are found in the outermost layer of the body and they include the skin, nails , hair etc.

These cells are found lining many areas of the body from contact with

external environment to prevent infection and death. They also help protect

the body cells from external factors such as sharp objects and other

pathogenic organisms.

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the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation:

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.