Creator Gary Larson has used all kinds of animals to make fans laugh in the usually hilarious one-panel comics, with quite a ...

The diagram below shows the same plant cell, as viewed with the light microscope, and with the transmission electron microscope. Animal and plant cells have certain structures in common.

Many cells in multicellular organisms are specialised. They have specific roles in the organism of which they are part. Their structure is adapted to their function. They are often grouped ...