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Parasite

Biology ParaphyleticParasites

parasite
a plant or animal living organism at the organism's expense
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

 


parasite
(Science: biology) An organism which obtains food and shelter from another organism (for example giardia).
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Games Parasites Play
Every organism has to cope with an assortment of predators and parasites.
Many biologists feel that one of the most potent forces of evolutionary adaptation is that created by the interactions between a host and its parasites.

Protozoan Parasites
Cryptosporidium parvum
The cysts of Cryptosporidium are of increasing importance because of their presence in water supplies.

Parasite ecology and population genetics
The study of parasites can reveal information about their relationship with the host (eg. influences on mortality rate) and relationships between different populations of host species.

parasites Organisms that live in, with, or on another organism. The parasites bene?t from the association without contributing to the host, usually they cause some harm to the host.

parasite -- n. An organism that lives on or within a host (another organism); it obtains nutrients from the host without benefiting or killing (although it may damage) the host; parasitic- adj.; parasitism- n.

parasite
(par-uh-site) [Gk. para, beside, akin to + sitos, food]
An organism that absorbs nutrients from the body fluids of living hosts.
parasitism ...

parasites: Plants or animals that live off another creature (or even inside it), obtaining food and protection without offering any benefit in return.
paternity: Identification of the father of a child.

Parasite: An organism that lives in or on another organism (the host) during some portion of its life cycle.
Parasitoid: An animal that feeds in or on another living animal, consuming all or most of its tissues and eventually killing it.

parasite. An organism that derives its food from the body of another organism, the host, without killing the host directly; ...

parasite - an organism that lives in or on another organism (the host) using it for food and shelter generally without killing it during some portion of its life cycle; ...

parasite
An organism that absorbs nutrients from the body fluids of living hosts.

An epiparasite is a one that feeds on another parasite. This relationship is also sometimes referred to as "hyperparasitism", and is most common in the insect world.

Parasite. An organism living on or in, and negatively affecting, another organism
Particulate organic matter. Particulate material in the sea derived from the decomposition of the nonmineral constituents of living organisms ...

parasite An organism that lives in or on another organism, deriving nourishment at the expense of its host, usually without killing it.
parasitic Denoting an association where one living organism benefits at the expense of another.

Crop parasites (Dutch Elm Disease, Karnal Bunt, Corn Smut, etc.).
Mushrooms (Agaricus campestris, the commercial mushroom), molds, mildews, rusts and smuts (plant parasites), yeasts (Saccharomyces cerevisae, the brewer's yeast).
Plantae ...

Some parasites can pick up genetic material from one organism and carry it to the next. This has been observed in fruit flies in the wild.

These parasite species actually get injected when the mosquito is feeding on the blood-the sporozoite form is released by the mosquito's saliva during that process. It's actually called Sporozoa at that stage.

the study of parasites and their relationships. The University of Aberystwyth has a parasitology group.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Parasitoid a parasite that eats its host's tissues‚ eventually killing it
(para = beside‚ near; sitio = food; -oid = like‚ form) ...

In regions of Africa where the malaria parasite was prevalent, the heterozygous state proved to be advantageous. The malaria parasite did not like the abnormal hemoglobin made by the sickle cell gene and did not infect the heterozygote.

Parasite: A plant without chlorophyll that obtains its nutrients by tapping into the branches, ...

A small, infectious, obligate intracellular parasite. The virus genome is composed of either DNA or RNA. Within an appropriate host cell, the viral genome is replicated and uses cellular systems to direct the synthesis of other viral components.

Last, we'll talk about the parasites of the protist world. Not all protists go about their life eating little bits of food in a pond. Some, called sporozoans, are nasty little parasites.

On reaching the cavity of the uterus the segmented ovum adheres like a parasite to the uterine mucous membrane, destroys the epithelium over the area of contact, and excavates for itself a cavity in the mucous membrane in which it becomes imbedded.

Viruses are obligate intracellular parasites--meaning that they require host cells to reproduce. In the viral life cycle, a virus infects a cell, allowing the viral genetic information to direct the synthesis of new virus particles by the cell.

There is also a series of intracellular parasites that are "on the edge of life"[56] in terms of metabolic activity, meaning that many scientists do not actually classify these structures as alive, ...

Temporary parasite affecting caged, laying hens since they are only on the birds to feed (blood); feeding takes place primarily at night. Chicken mites spend all of their time hidden in cracks and crevices in poultry houses and equipment.

viruses - obligate intracellular parasites that require the host cell's biochemical machinery to drive protein synthesis and metabolize sugars.

Viruses are not plants, animals, or bacteria, but they are the quintessential parasites of the living kingdoms.

T Phages: A phage which infects Escherichia coli. Viral parasites of this type are labeled T1 through T7. T2 was the first phage observed under the electron microscope.
Thymine: A nitrogenous base. Pairs with adenine in DNA molecules.

5. How this phylum relates to the rest of the world - are there any parasites? Does it have economic significance? Medical uses?
The more original information you include, the better your project will be.

These domains reflect whether cells have nuclei or not as well as differences in cell exteriors. There is also a series of intracellular "parasites" that are progressively less alive in terms of being metabolically active: ...

Immunoglobulin E (ige) An antibody that confers protection against parasites; ige also initiates allergic reactions.

Co-evolution: Joint evolution of two unrelated species that have a close ecological relationship resulting in reciprocal adaptations as happens between host and parasite, and plant and insect.

Vector: A type of DNA, such as a plasmid or phage that is self-replicating and that can be used to transfer DNA segments among host cells. Also, an insect or other organism that provides a means of dispersal for a disease or parasite.

biotic field, whenever that biotic field is compatible with the viruses' genomic sequences, they would be able to replicate themselves taking advantage of the energy and the catalytic molecules from the biotic medium where they progress as parasites.

Additionally, such peptidases are essential for several pathogenic parasites and bacteria.

See also: Organ, Human, Parasites, Cells, Trans