Whenever stocking up on tissues for this upcoming cold and flu season, be careful what you buy. Here are several popular tissues with links to cancer.

Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.

Image 1. Three examples of the tissue shapes the team created. The black and white square, circle and triangle on the left correspond to the cells that were illuminated. On the right, three fruit fly ...