A parasite is an organism that resides in or on one more organism and steals nutrient at the other’s expense.

You are watching: An organism living in or on another organism

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The waiting hostess (host) had actually a flea (parasite) life on her and also she said:

“You might as well come and also live in my home.” but she shortly wanted to remove him when she uncovered out he to be stealing her money (stealing nutrients).

Examples the parasites

Name of biology or disease

Type the microorganism

Body component affected

Hookworm

Worm

Lungs, small intestine, blood

Malaria

Protozoa

Red blood cells

Sleeping sickness

Protozoa

Blood, lymphatic and central nervous systems

Elephantiasis

Worm

Lymphatic system

Examples:

Common examples of hosts and parasites include:

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Dogs (host) and also 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 countless examples whereby one organism is organize to another that is not a parasite. This are known as symbiotic relationships and also occur together mutualism whereby both species benefit, or commensalism, whereby one benefits yet the other remains unaffected.

Common examples of this include:

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Humans (host) and also gut bacteria. This is an example of mutualism together the gut gives the right setting for the bacteria come survive and also a resource of food, if the bacteria failure food within the gut. An example is protein in meat i beg your pardon is broken down right into amino acids that can then be absorbed through the gut wall.

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Ritter’s sea anemones (host) and also clown fish. The clown fish feeds ~ above parasites and invertebrates that can harm the anemone. If the anemone offers the clownfish with protection from predators with its stinging tentacles indigenous which that is immune.

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Cleaner wrasse and also larger fish e.g. Sharks (host). The wrasse remove parasites from the skin the the sharks and any continues to be of uneaten food stuck in the mouth with would otherwise decompose and possible cause disease. The shark gives the wrasse with defense from various other fish the would watch 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 gives the coral that colour. The birds gains protection as fish and also other organisms that may otherwise eat it are unable to obtain at it v the difficult structure of the coral. If the coral is able come grow quicker as the algae removes carbon dioxide (CO2) so increasing the rate of calcification that the coral.

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Turtles (host) and also barnacles (parasite). The barnacles attach to the turtles covering so they have the right to be transported come nutrient well-off waters. A couple of barnacles execute not reason the turtles any type of harm but offer no benefit to it either, this is an example of commensalism. However if a turtles shell becomes extended with a large number the barnacles this deserve to make swim harder because that the turtle.