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19 de oct. de 2023 · In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment. Although scientists discussed adaptation prior to the 1800s, it was not until then that Charles Darwin and Alfred Russel Wallace developed the theory of natural selection.
Adaptation, in biology, the process by which a species becomes fitted to its environment; it is the result of natural selection’s acting upon heritable variation over several generations. Organisms are adapted to their environments in a variety of ways, such as in their structure, physiology, and genetics.
Adaptation is one of the two main processes that explain the observed diversity of species, such as the different species of Darwin's finches. The other process is speciation , in which new species arise, typically through reproductive isolation .
Adaptations can take many forms: a behavior that allows better evasion of predators, a protein that functions better at body temperature, or an anatomical feature that allows the organism to access a valuable new resource — all of these might be adaptations.
17 de ene. de 2002 · This text lays out the principles of mechanistic comparative physiology in an ecological and evolutionary context. The subject of evolutionary physiology has been advancing considerably and this book will bring readers up to date on a number of new techniques, ideas and data.
19 de oct. de 2023 · An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment.
26 de oct. de 2016 · We identify four emerging trends: (i) an adaptive molecular change in a pathway often results in fitness trade-off in alternative environments but the effects are dependent on a mutation's genetic background; (ii) adaptive changes often modify transcriptional and signalling pathways; (iii) several adaptive changes may occur within ...
