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  1. 1 day ago · Conclusion. Defining life is a complex and ongoing endeavor in biology. The definition of life has evolved over time, from Aristotle’s philosophical perspectives to the modern understanding of life as a self-sustaining, energy-transmitting, information-processing, and self-replicating entity. While there is still debate among scientists, the ...

  2. 1 day ago · The apparent benefits of ageing in this model imply that ageing can be an adaptive force of evolution and subject to positive selection or, at least less negative selection than expected. This minimal model helps explain trade-offs between reproduction and homeostatic maintenance during evolution.

  3. 5 days ago · The central dogma of molecular biology is a theory stating that genetic information flows only in one direction, from DNA, to RNA, to protein, or RNA directly to protein.

  4. en.wikipedia.org › wiki › SpeciationSpeciation - Wikipedia

    10 hours ago · Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages. [1][2][3] Charles Darwin was the first to describe the role of natural selection in ...

  5. 4 days ago · stress, in psychology and biology, any environmental or physical pressure that elicits a response from an organism. In most cases, stress promotes survival because it forces organisms to adapt to rapidly changing environmental conditions.

  6. 2 days ago · An organism's ideal learning rate depends on the pace of environmental change and its life cycle, they say. The findings are published in the journal Proceedings of the Royal Society B: Biological ...

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