Here's a breakdown:

* Plants: The epidermis is a single layer of tightly packed cells that covers the leaves, stems, roots, and flowers. It acts as a protective barrier against water loss, disease, and physical damage. It also helps regulate gas exchange.

* Animals: In animals, the epidermis is the outermost layer of skin. It consists of multiple layers of cells and plays a crucial role in protection, sensation, and temperature regulation.

Let me know if you have any other questions!