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the actions of the body's immune system that work to fight infections or disease.
the parts and processes of the body that recognise and fight pathogens, such as viruses and...
when the body makes its own antibodies when deliberately exposed to a dead or weakened pathogen...
drugs that are used to suppress the immune system to prevent tissue rejection.
consists of commands, e.g. Come here! Run away! See also sentence types: command.
one in which the individual producers (or group of producers) or consumers can influence the...
a pronoun that refers to an object, e.g. it, those. (This is true as long as a noun does not...
intangible costs such as those involved in providing good service.