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A receptor detects a stimulus e.g. pressure. The receptor generates electrical signals. Neurones conduct impulses, a sensory neurone conducts to the spinal cord. There is a synapse between the neurones an...

So as we know, the job of the lungs is to transfer oxygen from the outside atmosphere into the body while also removing waste products that the body has produced and needs to get rid of- carbon dioxide. T...

1- The long tail helps the sperm to swim towards the egg. Also makes the sperm more streamlined to get to the egg quicker. 2- The mitochondria release energy which enable the sperm to swim towards the egg...

Communicable diseases are diseases that can be transferred from one person or organism to another, for example colds are spread by airborne droplets and malaria is spread through mosquito bites. Non-commu...

Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration, through a partially permeable membrane.Diffusion is the movement of molecules from an area of...