The three types of symbiosis are mutualism, parasitism and commensalism. Symbiosis is the close relationship between two or more different species.Know More
Mutualism is when two organisms work together with each organism benefiting from the relationship. An example of this kind of relationship is that of the rhino and the oxpecker bird. The oxpecker lands on the rhino and eats parasites from the rhino's skin; the rhino receives pest control and the oxpecker gets an easy meal.
Parasitism is a relationship in which one species, usually a parasite, feeds on the other species. This typically causes harm to the species being fed upon. An example of parasitism is a tapeworm living on the inside of its host, stealing vital nutrients. The relationship between ticks and mammals is also an example of parasitism.
Commensalism is the relationship between two species in which one species gets food or shelter from the other species without harming its host, but the host doesn't benefit from the relationship. An example of commensalism is when one animal feeds off the pieces of food left over by another animal, usually after a hunt.
Symbiotic relationships are a vital part of life in every ecosystem. This balance is sometimes irrevocably affected when one species becomes extinct.Learn more in Psychology
Among counselors who take a three-stage approach to counseling, the three stages are building a relationship, exploring concerns and offering guidance and feedback. These phases generally occur in that order, though some relationship building is often still taking place after the main focus of the counseling has entered stage two or three. Likewise, counselors may bounce back and forth between stages two and three, exploring one concern, offering guidance about that concern and then moving on to the next concern.Full Answer >
In psychoanalytic theory, the three levels of consciousness as outlined by Sigmund Freud are the conscious, preconscious and unconscious minds. Freud likened this theory to an iceberg with a visible tip, the conscious mind; an obscured but visible middle, the preconscious; and a bulk hidden beneath the water, the unconscious.Full Answer >
Three basic needs of humans are drinkable water, nourishing food and adequate sleep, according to Maslow's Hierarchy of Needs. The ability to breathe is also necessary for humans. People also need safety, security and shelter. After those basic needs, people need love, friends and connections with others.Full Answer >
The three stages, also known as Mead's "stages of the self," are language, play and game. These stages are a part of a larger theory on sociological development described in Mead's "Mind, Self and Society."Full Answer >