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Speciation: Prezygotic and Postzygotic Barriers

Species: Latin word meaning “kind” Speciation: The origin of new species Macroevolution: The evolutionary changes above the species level eg. The appearance of feathers during the evolution of birds from one set of dinosaurs Anagenesis – one species over time becomes another species Cladogenesis– one species, over time, splits and becomes two species Morphogensis– look…

Cellular Membranes: Fluid Mosaic of Lipids and Proteins

Selective Permeability: Allows some substances to cross it more easily than others. A phospholipid is an amphipathic molecule, meaning it has both a hydrophilic region and a hydrophobic region. Fluid Mosaic Model: The membrane is a fluid-structure with a “mosaic” of various proteins embedded in or attached to a double layer (bilayer) of phospholipids. The…

What is Sociology?

Coined by Auguste Comte (1798-1857), meaning the study of society- socius (being with others) ology (the study of) Henslin et al: “simply put, sociology is the discipline study of human social behaviour, especially the investigation of the origins, classifications, institutions, and development of human society on a global level” “the systematic study of social behaviour…

Pros & Cons of Walmart: The High Price of Low Cost

Wal-Mart has been apart of our lives for over 50 years, becoming a dominant force in the retailing sector. There are several disputes amongst economists about whether Wal-Mart has a positive or negative influence on our economy and society, many criticizing the Wal-Mart Corporation for its negative and careless approach to becoming the powerhouse it…

Political Culture & Law

Political Culture Culture: ‘patterns of beliefs and behaviour’ Institutional arrangements Social traits Political culture = cultural attitudes towards politics & government Attitudes, beliefs, values, norms about political issues and ideas Cultural differences among different groups and states Ideology Three categories of political culture: Parochial = negative + low Subject = positive + low Participatory =…