How biological adaptation is relevant to life as we know it today. · It makes an organism suited or fit to its environment due to the change that occurs in it. · It enables and helps an organism to use internal and external physical traits in surviving.
What is biological adaptation and how is it relevant to life as we know it today? jacksonleavetta2010 jacksonleavetta2010 10/31/2018 Biology Middle School answered 17. What is biological adaptation and how is it relevant to life as we know it today? 2
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The idea of biological “noise” simply captures the idea that variation in traits, if it is selectively neutral, will be retained in organisms without contributing to biological fitness. The problem of clearly demarcating adaptations from nonadaptations in the biological world is an important one.
Homeostasis assures the stability of a given system or organism by keeping it in a stationary state in spite of perturbations. Homeorhesis is the same for evolutionary systems: instead of keeping the system stationary, it keeps the direction of evolution going, in spite of perturbations, on its path.
Sexual selection is probably best characterized as a special case of natural selection that is related to mate choice and mating ( Andersson, 1994; Clutton-Brock, 2004 ). Darwin (1871) recognized two main types of sexual selection. The first kind relates to mate choice and is referred as intersexual selection.
Alcohol tolerance can be pharmacokinetic or pharmacodynamic; the former results from an increase in metabolic enzymes, which results in faster alcohol clearance rates , while the latter refers to the biological adaptation of alcohol-related traits, such as the ability to maintain balance. Pharmacodynamic tolerance can also be divided into rapid, acute tolerance (minutes to hours) and slow, chronic (hours to days) tolerance. Epigenetic modulation of the BK (Big Potassium) channel is involved in the development of pharmacodynamic tolerance to alcohol. Nigel Atkinson and Andrzej Pietrzykowski, their respective colleagues, and others have been pivotal in defining the intricate alcohol-mediated epigenetic regulation of the BK or slopoke- channel ( slo- is the Drosophila homolog of the BK channel).
Ethanol typically upregulates the production of the BK channel via epigenetic modifications of histones (increased acetylation of H3 and H4) in a specific promoter DNA upstream of the slo gene. In the brain, the BK channel gene is a well-established target for modification by ethanol.
Piaget, who trained as a biologist, had as a primary objective to understand the development of knowledge in the human species , rather than to understand why and how children develop. His first originality was to address philosophical questions (such as the origin or the development of knowledge) by empirical means, in particular by relying on the study of child development (supposed to be, at the beginning of his career, a mere ‘detour’ of some years). He established the discipline of genetic epistemology (the term ‘genetic’ referring to the concept of genesis or evolution, as proposed by Baldwin), with the aim ‘to study the roots of the various sorts of knowledge from their most elementary forms on and to follow their development in ulterior levels including scientific thinking,’ and by grounding it in both historico-critical and psychogenetic approaches. Piaget's epistemology is constructivist, in the sense that knowledge is neither a mere reflection of the external world (realism), nor a projection of pre-existing structures of the mind (nativism), and the origins of knowledge are to be found in the practical and cognitive activity of the subject. Piaget's epistemology is also fundamentally interdisciplinary.
Anthropology contains four subdisciplines: cultural, physical or biological, linguistic, and archaeological. Each one of these subdisciplines has engaged with physical appearance and body image, though the vast majority of research has been conducted in cultural anthropology.