Cells make up all life on Earth. Cells are the smallest unit of life. All cells have specific structures, called components. Models in science are used to help us understand complicated ideas in a ...

A look at the cells of different organisms and a comparison of the structures found in plant and animal cells. All animal cells are surrounded by a membrane which contains the cytoplasm. Nearly all ...

Like some people, cells eat when they are under pressure -- but they consume parts of themselves. A multi-function protein helps control this form of cannibalism, according to a new article. Like some ...

Some worms that inhabit lakes and rivers are capable of almost limitless regeneration, and scientists have isolated the cell that allows them to perform their death-defying feats. The ability of ...