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  2. Symbiosis - Wikipedia

    en.wikipedia.org/wiki/Symbiosis

    The relationship is therefore classified as mutualistic. [1] Symbiosis (Ancient Greek συμβίωσις symbíōsis: living with, companionship < σύν sýn: together; and βίωσις bíōsis: living) [2] is any type of a close and long-term biological interaction, between two organisms of different species.

  3. Host (biology) - Wikipedia

    en.wikipedia.org/wiki/Host_(biology)

    Symbiosis spans a wide variety of possible relationships between organisms, differing in their permanence and their effects on the two parties. If one of the partners in an association is much larger than the other, it is generally known as the host. [1] In parasitism, the parasite benefits at the host's expense. [2]

  4. Parasitism - Wikipedia

    en.wikipedia.org/wiki/Parasitism

    Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. [1] The entomologist E. O. Wilson characterised parasites as "predators that eat prey in units of less than one". [2]

  5. Biological interaction - Wikipedia

    en.wikipedia.org/wiki/Biological_interaction

    Parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life. [20] The parasite either feeds on the host, or, in the case of intestinal parasites, consumes some of its food. [21]

  6. Mutualism (biology) - Wikipedia

    en.wikipedia.org/wiki/Mutualism_(biology)

    Symbiosis involves two species living in close physical contact over a long period of their existence and may be mutualistic, parasitic, or commensal, so symbiotic relationships are not always mutualistic, and mutualistic interactions are not always symbiotic. Despite a different definition between mutualism and symbiosis, they have been ...

  7. Mutualism Parasitism Continuum - Wikipedia

    en.wikipedia.org/wiki/Mutualism_Parasitism_Continuum

    The degree of change between mutualism or parasitism varies depending on the availability of resources, where there is environmental stress generated by few resources, symbiotic relationships are formed while in environments where there is an excess of resources, biological interactions turn to competition and parasitism. [3]

  8. Cooperation (evolution) - Wikipedia

    en.wikipedia.org/wiki/Cooperation_(evolution)

    Symbiosis refers to two or more biological species that interact closely, often over a long period of time. Symbiosis includes three types of interactions—mutualism, commensalism, and parasitism—of which only mutualism can sometimes qualify as cooperation. Mutualism involves a close, mutually beneficial interaction between two different ...

  9. Symbiotic bacteria - Wikipedia

    en.wikipedia.org/wiki/Symbiotic_bacteria

    Symbiotic bacteria are able to live in or on plant or animal tissue. In digestive systems, symbiotic bacteria help break down foods that contain fiber. They also help produce vitamins. Symbiotic bacteria can live near hydrothermal vents. They usually have a mutual relationship with other bacteria. Some live in tube worms.