Here's why:
* Toxin: A toxin is a poisonous substance produced by living organisms, such as bacteria, fungi, plants, or animals. Toxins can interfere with the normal functioning of an organism's cells, leading to illness or death.
* Mechanism: Toxins can act by overwhelming the body's detoxification mechanisms, preventing the body from effectively eliminating the harmful substance. This can lead to a build-up of the toxin in the body, causing damage to tissues and organs.
Examples:
* Botulinum toxin: Produced by the bacterium *Clostridium botulinum*, it blocks the release of a neurotransmitter called acetylcholine, causing muscle paralysis.
* Ricin: A toxin from the castor bean, it interferes with protein synthesis, leading to cell death.
* Cobra venom: Contains neurotoxins that affect the nervous system, leading to paralysis.
It's important to note that toxins are not the only biological agents that can be harmful. Other types of biological agents, such as viruses and bacteria, can also cause illness and death.
