membrane *
tissue layer

As described, the animal had only a single layer of tissue.

A membrane can mean a thin layer of cells or tissue.

All of these soft tissue layers allow the brace some "give" and movement.

The brain is surrounded by a layer of tissue called the meninges.

Behold the mirrored layer of tissue growing over all these leaves.

Each tissue layer is prepared and examined under the microscope for cancer cells.

Pidge opened the box, peeled back the layers of tissue.

Each segment is separated from the others by a layer of connective tissue.

It develops in a thin layer of tissue that lines the abdomen.

The lungs are covered by a thin tissue layer called the pleura.