Fertilisation
Has to take place before a new animal can grow. The sperm and the egg join up, making a fertilized .the new animal grows from this fertilized egg which divides, producing more and more cells.
Intestine cell :cells which take in or absorb food
Fat cell: cell which store food
Nerve cell: cells which carry messages round the body
Red blood cell: cells which carry chemical round your body
Cell in the nose: cells which allow chemicals to pass through channels between then.
Cells in the wall of a blood capillary :cell with tiny hairs which move liquids over their surface.