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Active immunity occurs when an individual develops immunity against a specific antigen when they are exposed to it - your body reacts by producing memory cells that provide long lasting immunity against that...

An antigen is a substance that is introduced to the body and stimulates an immune response and the production of antibodies. Antibodies are proteins produced by cells in the body in in repsonse to the presen...

Diamond is covalently bonded and has a giant covalent structure. Covalent bonds require lots of energy to break as they are strong so diamond has the highest melting point. Iodine has only weak intermolecula...

Utilitarianism is one of the major moral theories along with deontology and virtue ethics. According to utilitarianism, the morally best action is the action that maximises utility (or good) to the greatest ...

The question of theodicy is the question of how God's existence remains probable despite the problem of evil in the world. A certain theodicy is then an attempt to answer this question by giving a justificat...