Search over 10,000 free study notes

A vaccine is a weakened or dead form of a virus that contains the antigen of that virus.

An antigen is a protein on the surface of the virus that allows the body to identify it.

Specific T h...

Organisms do not adapt much over their lives, but in a large population there will be many different individuals. Some taller, some shorter, some may have a longer beak or a slightly different colour patt...

They are the energy producing organelle. In the motochondria, glucose is converted into energy.

During strenuous activities such as exercising, the consumption of oxygen is greater than it's supply. As Oxygen is the final acceptor of electrons in the electron transport chain, without Oxygen the chai...

This process is called transcription. In the nucleus, an enzyme helicase is used to break the hydrogen bonds between the two strands of the double helix. Only o...