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  2. Biological interaction - Wikipedia

    en.wikipedia.org/wiki/Biological_interaction

    In ecology, a biological interaction is the effect that a pair of organisms living together in a community have on each other. They can be either of the same species (intraspecific interactions), or of different species (interspecific interactions). These effects may be short-term, or long-term, both often strongly influence the adaptation and ...

  3. Mutualism (biology) - Wikipedia

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

    Mutualism (biology) Hummingbird hawkmoth drinking from Dianthus, with pollination being a classic example of mutualism. Mutualism describes the ecological interaction between two or more species where each species has a net benefit. [1] Mutualism is a common type of ecological interaction.

  4. 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.

  5. Relationships and health - Wikipedia

    en.wikipedia.org/wiki/Relationships_and_health

    Relationships provide social support that allows us to engage fewer resources to regulate our emotions, especially when we must cope with stressful situations. Social relationships have short-term and long-term effects on health, both mental and physical. In a lifespan perspective, recent research suggests that early life experiences still have ...

  6. Interpersonal relationship - Wikipedia

    en.wikipedia.org/wiki/Interpersonal_relationship

    Psychology. In social psychology, an interpersonal relation (or interpersonal relationship) describes a social association, connection, or affiliation between two or more persons. It overlaps significantly with the concept of social relations, which are the fundamental unit of analysis within the social sciences.

  7. Social exchange theory - Wikipedia

    en.wikipedia.org/wiki/Social_exchange_theory

    Social exchange theory is a sociological and psychological theory that studies the social behavior in the interaction of two parties that implement a cost-benefit analysis to determine risks and benefits. The theory also involves economic relationships—the cost-benefit analysis occurs when each party has goods that the other parties value. [ 1 ]

  8. Friendship - Wikipedia

    en.wikipedia.org/wiki/Friendship

    v. t. e. Friendship is a relationship of mutual affection between people. [1] It is a stronger form of interpersonal bond than an "acquaintance" or an "association", such as a classmate, neighbor, coworker, or colleague. In some cultures, [which?] the concept of friendship is restricted to a small number of very deep relationships; in others ...

  9. Outline of relationships - Wikipedia

    en.wikipedia.org/wiki/Outline_of_relationships

    Long-term relationship (LT —R) Monogamy – having a single long-term partner or marriage to one person. Polyamory – having multiple long-term lovers and/or partners. Polygamy – marriage to multiple partners. Polyandry – the marriage of a woman to multiple men. Polygyny – the marriage of a man to multiple women.