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In sociological terms, groups can fundamentally be distinguished from one another by the extent to which their nature influence individuals and how. [2][3] A primary group, for instance, is a small social group whose members share close, personal, enduring relationships with one another (e.g. family, childhood friend).
Secondary endosymbiosis has occurred several times and has given rise to extremely diverse groups of algae and other eukaryotes. Some organisms can take opportunistic advantage of a similar process, where they engulf an alga and use the products of its photosynthesis, but once the prey item dies (or is lost) the host returns to a free living state.
Fibrous layer of the periosteum. o. Layer of osteoblasts. im. Subperiosteal bony deposit. There are two types of ossification centers – primary and secondary. A primary ossification center is the first area of a bone to start ossifying. It usually appears during prenatal development in the central part of each developing bone.
Sociology. In the social sciences, a social group is defined as two or more people who interact with one another, share similar characteristics, and collectively have a sense of unity. [1][2] Regardless, social groups come in a myriad of sizes and varieties. For example, a society can be viewed as a large social group.
Secondary homology is implied by parsimony analysis, where a character state that arises only once on a tree is taken to be homologous. [ 20 ] [ 21 ] As implied in this definition, many cladists consider secondary homology to be synonymous with synapomorphy , a shared derived character or trait state that distinguishes a clade from other organisms.
The primary–secondary quality distinction is a conceptual distinction in epistemology and metaphysics, concerning the nature of reality. It is most explicitly articulated by John Locke in his Essay concerning Human Understanding, but earlier thinkers such as Galileo and Descartes made similar distinctions. Primary qualities are thought to be ...
Peer group. Early childhood peers engaged in parallel play. In sociology, a peer group is both a social group and a primary group of people who have similar interests (homophily), age, background, or social status. The members of this group are likely to influence the person's beliefs and behaviour.
In primary socialization the family has a grand influence on the individual, as well as peer groups, educational institutions, and mass media. Overlapped with this is the process of secondary socialization, which occurs from childhood through adulthood, wherein an individual encounters new groups, and must take up new roles to successfully ...