A parasite is an biology that stays in or on an additional organism and steals nutrient at the other’s expense.

You are watching: An organism that lives in or on another organism

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The air hostess (host) had actually a flea (parasite) living on her and she said:

“You might also come and also live in my home.” yet she soon wanted to remove him as soon as she discovered out he was stealing her money (stealing nutrients).

Examples the parasites

Name of biology or disease

Type the microorganism

Body component affected

Hookworm

Worm

Lungs, little intestine, blood

Malaria

Protozoa

Red blood cells

Sleeping sickness

Protozoa

Blood, lymphatic and central nervous systems

Elephantiasis

Worm

Lymphatic system

Examples:

Common instances of hosts and parasites include:

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Dogs (host) and fleas (parasite)

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Fish (host) and also leaches (parasite)

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Human (host) and also tapeworms (parasite)

However over there are plenty of examples where one organism is hold to an additional that is not a parasite. These are well-known as symbiotic relationships and also occur together mutualism wherein both species benefit, or commensalism, where one benefits but the various other remains unaffected.

Common examples of these include:

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Humans (host) and also gut bacteria. This is an instance of mutualism as the gut offers the right setting for the bacteria to survive and also a resource of food, when the bacteria malfunction food in ~ the gut. An example is protein in meat i m sorry is damaged down right into amino acids that have the right to then be took in through the gut wall.

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Ritter’s sea anemones (host) and clown fish. The clown fish feeds on parasites and also invertebrates that might harm the anemone. When the anemone offers the clownfish with security from predators through its stinging tentacles native which it is immune.

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Cleaner wrasse and larger fish e.g. Sharks (host). The wrasse eliminate parasites from the skin that the sharks and also any continues to be of uneaten food grounding in that is mouth with would otherwise decompose and feasible cause disease. The shark offers the wrasse with security from other fish the would check out the wrasse as potential prey.

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Hard corals (host) and also algae. The polyps that type hard coral reefs save on computer a type of algae, which offers the coral its colour. The birds gains defense as fish and also other biology that may otherwise eat it room unable to get at it through the difficult structure of the coral. While the coral is able come grow much faster as the algae clears carbon dioxide (CO2) so accelerating the price of calcification that the coral.

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Turtles (host) and barnacles (parasite). The barnacles attach to the turtles covering so they can be transported to nutrient affluent waters. A few barnacles execute not cause the turtles any kind of harm yet offer no advantage to it either, this is an instance of commensalism. But if a turtles covering becomes covered with a huge number of barnacles this can make swim harder because that the turtle.