Public domain photos

The image shows a close up of a piece of paper with a black and white image of a cell in the center, which appears to be a cross section of a plant stem. The cell is surrounded by a ring of brown and cream colored fibers, giving it a unique texture.

The image shows a close up of a piece of paper with a black and white image of a cell in the center, which appears to be a cross section of a plant stem. The cell is surrounded by a ring of brown and cream colored fibers, giving it a unique texture.Open in library