Define struggle for existence. struggle for existence synonyms, struggle for existence pronunciation, struggle for existence translation, English dictionary definition of struggle for existence. n competition between organisms of a population, esp as a f
Biologythe competition in nature among organisms of a population to maintain themselves in a given environment and to survive to reproduce others of their kind. 1820–30 'struggle for existence' also found in these entries (note: many are not synonyms or translations): ...
in biology, a metaphorical expression proposed by C. Darwin (1859) to describe an organism’s activity directed at preserving life and providing for the existence of offspring. The concept of the struggle for life is closely related to natural selection. In the most general sense, the struggle...
Dinosaurs and mammals have coexisted for the last ~ 230 million years. Both groups arose during the Late Triassic and diversified throughout the Mesozoic and into the Cenozoic (the latter in the form of birds). Although they undoubtedly interacted in many ways, direct fossil evidence for th...
“struggle for life” circulated among naturalists before Darwin, and that those notions generally emphasised what has been called the “conservative aspect of the struggle for existence”, and not its evolutionary role. Its aim is, instead, to argue that the idea of a “war of nature” was ...
it did not dig deep enough to the psychosexual roots of class.Here is the same definition quoted above now rephrased to include the biological division of the sexes for the purpose of reproduction, which lies at the origins of class: Historical materialism is that view of the course of histor...
The history of TEs is much shorter than the history of the theory of evolution: it is less than 70 years since Barbara McClintock first reported the existence of controlling elements. However, even though her discoveries were rigorously supported by experimental data it took much longer for McClin...
The history of TEs is much shorter than the history of the theory of evolution: it is less than 70 years since Barbara McClintock first reported the existence of controlling elements. However, even though her discoveries were rigorously supported by experimental data it took much longer for McClin...
biology of procreation that drives this definition. If a man sleeps with two women and both fall pregnant, there is no doubt about the paternity of the children. This is partly why the law permits an Israelite man to take more than one[p.265]wife (cf. 21:15–17) and for this not ...
to make art. This blog certainly fulfills that need but it’s not the only means by which I have to do it. I actually started this blog as a means to an end. It came into existence because of something else that Iwantedto do. For the time being, what I wanted to do is not an...