Some parasites, such as copepods small crustaceans , nematodes, and leeches. A few examples of parasites are tapeworms, fleas, and barnacles. Some parasitic animals attack plants. Tapeworms are segmented flatworms that attach themselves to the insides of the intestines of animals such as cows, pigs, and humans. Now try a Test Bite. Algae can photosynthesise and make food, which is shared by the fungus.
Many types of fungi can also attack plants and can spoil wheat, fruit, and vegetables. Other examples of parasitism in plants include hemi-parasitic species like mistletoe, yellow rattle, etc. However, they are still considered different from other parasites. Related Biology Terms Obligate Parasite — A parasite that depends on the host in order to complete its life cycle. Epiparasites are also called hyperparasites or secondary parasites. The phorid fly, on the other hand, is a small fly which is more often seen running on some surface instead of flying around. When leaf-cutter ants are collecting leaves, a phorid fly attacks a worker ant and lay its eggs in the crevice on worker ant's head. A fungus causes lumpy jaw, a disease that injures the jaws of cattle and hogs. BiologyWise Staff The number of lifeforms on our planet far exceeds the million mark, and each of these lifeforms interacts with others either directly or indirectly for the sake of survival. A specific example is the nematode species Strongyloides stercoralis. Sometimes, the parent parasite paralyzes a host which is then fed on by the young. They are generally unicellular , such as protozoa. By Editors Parasitism Definition Parasitism is a type of symbiotic relationship, or long-term relationship between two species, where one member, the parasite, gains benefits that come at the expense of the host member. Obligate Parasitism Obligate parasites are completely dependent on the host in order to complete their life cycle. You must have also seen fungi species on tree trunks in the wild, or around your house for that matter. However, they can be treated with anti-parasitic medication. Parasitoid — An insect parasite that ultimately kills its host. They may use mimicry to invade the hive. Parasitism and mutualism Parasitism Parasites are organisms that live on or in a host organism. The parasite adapts to its environment by living in and using the host in ways that harm it. Parasitism is extremely common in insects. In Plants Aphids are small green insects that parasitize plants by eating their sap. This parasite species has gained benefits such as food and transportation, but from this extreme form of parasitism the ants have evolved to be so weak that if they fall off their host, they will not be able to crawl back on, and die. The ocean sunfish Mola mola , for instance, plays host to as many as 40 parasitic species dwelling in the ocean, including flatworms, roundworms, sea lice, shark tapeworm, etc. They are further grouped into two categories. Usually these parasites attack larva, or young insects. This occurs commonly in wasps such as Ampulex compressa, whose young eat paralyzed cockroaches that have been stung by the parent.
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