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V125BC [204]
3 years ago
8

Which are characteristics of epithelial cells? Select two options.( Answer Needed ASAP)​

Biology
1 answer:
Umnica [9.8K]3 years ago
5 0

Answer:

found lining many areas that contact the external environment

plays a role in protection

Explanation:

Explanation: Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated. Epithelial cells have two surfaces that differ in both structure and function.

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In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.

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8 0
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A researcher wants to introduce the human gene encoding tissue plasminogen activator (used to dissolve blood clots) into a mamma
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