Exploring Life 1) Slides 1 and 2: What is the main difference between physiological adaptation (as in sense‚ respond and adapt to the environment) and evolutionary adaptation? Evolutionary adaptation occurs over generations. Evolutionary adaptation does involve genetic change but it’s the change in traits as a result of genetic change that drives natural selection and evolutionary adaptation (just genetic change alone won’t drive evolutionary change). Physiological adaptation is an adjustment to environmental
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(Hint: those buried deep in the cell probably do different things than those closer to the cell membrane). Structure does not affect function of the cells‚ cells have a particular structure that enables them to carry out their function in the best way. 2. Draw a labeled diagram of a small section of the plasma membrane and briefly describe its structure and function. 3. Describe the difference between the animal and plant cells. Plant Cells have cell walls‚ which makes them appear rectangular
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Evolutionary Bioenergetics of Protocells Introduction Bioenergetics is central to our understanding of living systems‚ though there has been very less research in field of finding the origins of life. Understanding the origin of cellular life on Earth requires the discovery of plausible pathways for the transition from complex prebiotic chemistry to simple biology‚ defined as the emergence of chemical assemblies capable of Darwinian evolution. A coherent pathway which starts from no more than
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Evolutionary explanations of aggression Evolutionary psychologists argue that reproductive challenges faced by our ancestors can explain the aggressive behaviour seen in people today. A man can never be certain that he is the father of his wife’s children unless he prevents her having relationships with other men. This can explain why male jealousy is often cited as a cause of domestic violence. In many countries it is seen as acceptable to murder an adulterous wife or her lover e.g. among the Nuer
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The Evolutionary Theory of Attachment Bowlby’s evolutionary theory consists of a number of essential factors. The evolutionary theory of attachment as proposed by John Bowlby (1907-1990) suggests that attachment‚ in terms of adaptation‚ is essential for survival. In order to progress healthily‚ children are born with an innate tendency to form attachments. This means that infants are pre-programmed to become attached to their caregiver. This is supported by the research of Lorenz (1952) in
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of change. Carcinogenesis is the development of cancer. Cancer cells are abnormal cells and they have characteristics that can be associated with their ability to grow uncontrollably. Cancer cells are non-specialized‚ and divide uncontrollably. Cancer in situ is a tumor located in its place of origin. Malignant tumors establish new tumor distant from the primary tumors. Cancer cells characteristics distinguish them from normal cells. They have abnormal nuclei with many chromosomal irregularities
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Cell: The cell is the basic structural‚ functional and biological unit of all known living organisms. Cells are the smallest unit of life that is classified as a living thing‚ and are often called the "building blocks of life". Discoverer: The cell was discovered by Robert Hooke in 1665. The cell theory‚ first developed in 1839 by Matthias Jakob Schleiden andTheodor Schwann‚ states that all organisms are composed of one or more cells‚ that all cells come from preexisting cells‚ that vital functions
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The evolutionary model of jealousy implies that jealousy responses between men and women evolved to aid them with the different reproductive challenges faced by the two sexes. It states that‚ when it comes to infidelity‚ men are concerned with their female partner becoming pregnant by another man and are therefore more likely to feel jealous in response to sexual infidelity cues. Women are more concerned with their male partner diverting emotional and material resources required for raising her children
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are composed of cells? Cell theory What type of microscope would be best for studying the detailed structure of the surface of a plasma membrane? Scanning electron microscope The two basic types of cells are ______ and ______. Prokaryotic . . . eukaryotic When using a light microscope to view a cell you obtained from scraping under your fingernails‚ you notice that the cell lacks a nucleus; therefore‚ you conclude that the cell must be a type of ______ cell. Prokaryotic One difference
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Evolutionary Psychology This paper addresses a fundamental limitation in most attempts to apply the findings of evolutionary psychology to the human condition. Most attempts focus on how our biological past constrains and limits our behavioural options (including our cognitive abilities). They generally fail to look at whether these constraints can be overcome in our future evolution. To date‚ evolutionary psychology has not satisfactorily addressed a key question: are we beings forever constrained
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