### poison | toxin:

Environmental toxin
* Environmental Toxins Use appropriate precautions when working around industrial chemicals.
* Most environmental toxins can have devastate results
* Some environmental toxins affect types
  - cause life
* are spread by wind, rain and currents.
* can also play a role in causing birth defects.
* enter the body from outside sources.

Exotoxin
* Many exotoxins are the most lethal substances known.
* are among the most potent toxins
  - poisonous proteins secreted by bacterial cells
  - protein in nature and their reactions are specific
* can irritate the digestive tract.

Harmful toxin
* Some harmful toxins affect humans.
* cause distress.

Marine toxin
* Some marine toxins are produced by diatoms.
* are either biological or chemical, and both have contributed to dolphin deaths.

### poison | toxin:

Mycotoxin
* All mycotoxins are present in non-uniformly distributed trace concentrations.
* Some mycotoxins are carcinogenic, mutagenic, teratogenic and immunosuppressive
  - documented carcinogens, implying they are suspect cancer-causing agents
  - mutagenic and carcinogenic
  - rare in occurrence while others such as aflatoxin are common in some years
  - continue to be produced in storage, particularly unfavourable storage
  - directly inhibit the growth of micro-organisms
* also pose a potential hazard to human health.
* are a concern in both corn and wheat crops prior to harvest and during storage
  - subset of biotoxins and are produced by fungal organisms
  - type of aflatoxin
  - carcinogens and they can lead to liver cancer in humans
  - chemicals produced by certain varieties of molds and fungi
  - compounds produced by fungi that are harmful to human and animal health
  - detoxified or altered in the rumen
* are fungal metabolites that are present in a large part of the world s food supply
  - secondary metabolites that are toxic to humans and animals
  - harmful byproducts from molds that grow on foods and feeds
  - insidious poisons
  - neither infectious nor contagious, but can occur on a herd-wide basis
  - poisonous metabolites produced by fungi
  - potent compounds
* are secondary chemical metabolites of the fungi and are usually contained in the spores
  - metabolites produced by fungus and are also known as molds
* are toxic chemicals produced by both molds and yeasts
  - residues of molds which can occur in grains, nuts and spices
* can be deadly to animals that feed on infected materials
  - detrimental to the health of both animals and humans
  - present in spores and small mold fragments released into the air
* can cause damage to membrane tissues
  - human health problems and economic losses in livestock
* produce a wide range of harmful effects in animals.
* produced by candida include gliotoxin,which is known to suppress the immune system.
* reduce quality and marketability of crops such as malting barley.
* reveal connections between plants and animals in apoptosis and ceramide signaling.
* stay int the spore, mycelium, hyphae and substrate it grew-on.

Natural toxin
* Some natural toxins are far more potent than applied chemicals
  - toxic than manmade synthetic pesticides
* can also contaminate fish
  - be harmful too
* implies bitter taste.
* produced by moulds can be highly lethal.