How does epithelial tissue bruises or wounds?
a. it replaces damaged cells.
b. it creates a barrier over the bruise or wound.
c. it releases a substance that heals the bruise or wound.
d. it stops blood flow in the area of the bruise or wound.

A. It replaces damaged cells.

Explanation:

The blood flow stops because blood has platelets.

Those platelets create a protein web to stop the flow.

Once the wounds are sealed, epithelial tissue start replacing the affected cells and though days create new skin and the crost fall.

A. It replaces damaged cells.

Explanation:

The epithelial tissues consists of cells which lie in close association with each other, they are packed and remain in one or two layers. They prevent the entry of microbes and chemical substances inside the body. These tissues are found in internal and external surfaces of the body. The tissues have the regenerative capacity which means the cells regrow after death or injury on the site.  

Due to regenerative property of the epithelial tissues they can replace the damaged cells in the body with healthy cells affected by bruises and wounds.

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