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 ...

But it cannot grow or make baby cars. So, a car is not alive. All living organisms are made up of cells. Cells are the building units of life - the basic building blocks of all animals and plants.

Cells are the smallest unit of life and the building ... giving insight into the human body and its capabilities. BBC Teach has thousands of free, curriculum-linked resources to help deliver ...

To hear more, search Bitesize Biology on BBC Sounds. This episode breaks down the key facts about stem cells: what they are, how they differ in plants and animals, and why they're really useful ...

Bacteria are amongst the simplest of organisms - they are made of single cells. Their cell structure is simpler than the cells of animals, plants and fungi. Size Most are 5 μm - 100 μm.