Please name 5 parasites?

Question

This is for my Science report and i really need to noe about them and if u can please name a parasite that is helpful to humans and how it is helpful

Answer 1

A few examples of parasites are tapeworms, fleas, and barnacles. Tapeworms are segmented flatworms that attach themselves to the insides of the intestines of animals such as cows, pigs, and humans. They get food by eating the host's partly digested food, depriving the host of nutrients. Fleas harm their hosts, such as dogs, by biting their skin, sucking their blood, and causing them to itch. The fleas, in turn, get food and a warm home. Barnacles, which live on the bodies of whales, do not seriously harm their hosts, but they do itch and are annoying

Answer 2

Ringworm is very common, especially among children, and may be spread by skin-to-skin contact, as well as via contact with contaminated items such as hairbrushes. Ringworm spreads readily, as those infected are contagious even before they show symptoms of the disease. Humans can contract ringworm from animals; cats and dogs are often carriers. Contact sports such as wrestling have a risk of contracting the fungal infection through skin-to-skin contact.

The Acanthocephala (gr. Acanthus — thorn Kephale — head) is a phylum of parasitic worms, characterised by the presence of an evertable proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host. Acanthocephalans typically have complex life cycles, involving a number of hosts, including invertebrates, fishes, amphibians, birds, and mammals. About 1150 species have been described.

Rafflesia is a genus of parasitic flowering plants. It contains 15-19 species (including four incompletely known species as recognized by Meijer 1997), all found in southeastern Asia, on the Malay Peninsula, Borneo, Sumatra and Kalimantan, West Malaysia, and the Philippines. The flowers have no leaves and hardly any stem, just a huge speckled five-petaled flower with a diameter up to 106 cm, and weighing up to 10 kg. Even the smallest species, R. manillana, has 20 cm diameter flowers. The flowers smell like rotting meat, hence its local names which translate to "corpse flower" or "meat flower". The vile smell that the flower gives off can sometimes attract flies. It is parasitic on vines in the genus Tetrastigma (Vitaceae), spreading its roots inside the vine. The fruit is eaten by tree shrews and other forest mammals. Rafflesia is an official state flower of Sabah in Malaysia, as well as for the Surat Thani Province, Thailand.

Oestridae (also called botfly or bot fly) is a family of Oestroidea. It is one of several families of hairy flies whose larvae live as parasites within the bodies of mammals, such as the Desert Woodrat. There are approximately 150 known species worldwide.

The candiru or canero (Vandellia cirrhosa) or toothpick fish is a freshwater fish in the group commonly called the catfish. It is found in the Amazon River and has a reputation among the natives as the most feared fish in its waters, even over the piranha. The species grows only to a size of an inch in length and is eel shaped and translucent, making it almost impossible to see in the water. The candiru is a parasite. It swims into the gill cavities of other fish, erects a spine to hold itself in place, and feeds on the blood in the gills, earning it a nickname as the "vampire fish of Brazil".

Answer 3

Have you tried reading your science book?

. Parasitism. One member of the association lives at the expense of the other member. .

By definition a paracite cannot be helpful

There are serveral bacteria that do work to our benefit, in our digestive system mostly. I don't know their names, but if your teacher is asking you, I guarantee you it is in your book in the section where they talk about parasites.


My top 5 parasites: Social Security, Unions, Poker sites, MTV and MY boss.

Answer 4

SMALL SAMPLE OF HUMAN PARASITES
GIARDIA - infection rates - 2-15% in various parts of the world
Cryptosporidium - Waterborne outbreak in Milwaukee, Wis. in the water supply in 1993 infected 300,000. Data indicates there are 500 million cryptosporidium infections worldwide.

Genital Protozoa
*TRICHOMONAS - (5 million women and 1 million men in U.S. infected)

Nervous System Protozoa
* NAEGLERIA FOWLERI - Closely resembles bacterial meningitis but is a protozoa found in moist soil and fresh water. Acute suppurative infection of the brain and meninges.

Tissue Protozoa
*ACANTHAMOEBA - These organisms invade the adrenal's, brain, eyes, kidney, liver, pancreas, skin, spleen, thyroid, and uterus. * PNEUMOCYSTIS CARINII - Recognized in recent years as an important cause of Pneumonia, particularly in AIDs patients. *TRICHINELLA SPIRALIS - From ingestion of raw or poorly cooked pork, bear, walrus, or other carnivores. They go through the lymphatic system to the muscles and invade the diaphragm, tongue, jaws, neck, biceps and gastrocnemius. These create cysts which are encapsulated by the host. In some cases calcification of the cysts occurs. This also causes weakening of the muscles.
Blood Parasites* MALARIA - 300 million people per year infected. Blood born parasite transmitted by mosquitoes. It is not epidemic in the U.S. but is still considered a life threatening ailment for travelers. * BABESIA SPP. First discovered in Texas cattle in 1888 and is now recognized as the cause of Texas cattle fever transmitted by ticks. Severe outbreaks have occurred in the northern U.S. The organism like Malaria infects the Red Blood Cells. This is potentially fatal.

Intestinal Nematodes
*ASCARIS LUMRICOIDES - Largest of the nematodes - Can go up to a foot in length. "The number of people infected in the world with this parasite is only second to the number infected with pinworms." Eggs hatch in stomach and the larvae invade the intestinal walls. Then they go to the lungs. Worms may migrate due to stimuli such as fever, general anesthesia, or other abnormal conditions. This migration can result in intestinal blockage and infestation of vital organs.
*E. VERMICULARIS - The common pinworm. In most people the only symptom is an itchy anus, irritability and insomnia. These are very common and a quote directly from the text reads "You had this infection as a child, you have it now or you will get it again when you have children".
*TRICHURIS TRICHIURA - Known as the Whipworm. These are about an inch long. They are rarely seen in the stool as they are attached to the intestinal walls. These contribute to anemia as they suck blood and also cause dysentery.
*HOOKWORMS - Globally 900 million people have these. These little guys steal valuable iron. They can cause both mental and physical retardation.
*TRICOSTRONHGYLUS SPP. Found in herbivores throughout the world. Grazing areas are constantly reinfected. Human infection of S. steroralis is acquired by skin penetration of the filariform larvae from the soil.

Liver & Lung Trematodes or Flukes
*Clonorchis, Opisthorchis and Fasciola are tremadodes that parasitize the biliary ducts and gall bladders of humans. Over 40 million people have acquired food borne trematode infections. Infections occur from Raw fish or uncooked water plants. Carried by dogs, cats and other fish eating animals.
*PARAGONIMUS SPP. - Found in the lungs of carnivores and humans first detected in 1828. Light infestations are asymptomatic, although lung lesions may be noted on X-ray examination. Sometimes mistaken for cancer of the lungs. Eventually chronic cough develops with blood tinged sputum and vague chest pains. Estimates are 22 million people worldwide have these.
Blood Trematodes or Flukes
*SCHISTOSOMES have infected more than 200 million people worldwide. The spleen can become congested and increase in size. These can travel all over the body to most organs and can even cause seizures when they get into the brain. They have been reported to invade the spinal cord

Answer 5

leaches have been used as blood draining tools by doctors for years. They can extricate old blood from wounds in-evasively.

Answer 6

5 Parasites:

1) my ex
2) my boss
3) my wife
4) my kids
5) my dog

Answer 7

My In-Laws! Although I don't know how helpful to man they are