During the last century, using different biological mechanisms, several evolutionary theories were formulated for the explanation of inevitable aging, which has no positive function. Several scientists accepted
E. coliperceive gradients of nutrition directly without an “internal” comparison process (see Pittenger and Dent1988). Cells within organisms do not perceive; they are not organisms, but, rather, subcomponents of organisms. All animal organisms are agents...
Charles Darwin proposed that species evolve through the process of natural selection. Individuals in a population have traits that allow them to be better suited to survive; these individuals survive and pass on their traits to their offspring. Over time, favorable traits are selected for ...
for evolution As a result of natural selection, organisms with more ... traits are more likely to ... , ..., and ... on the favorable Describe how species evolve via natural selection. (Be sure to discuss the key aspects of natural selection: variation,...
You’ve got to rape before you get raped. This method of reproduction can and does cause injury to the rape “victim” which could lead to infection and other issues. Not exactly ideal from a fitness perspective. And this is why sexually reproducing organisms have evolved a binary gender ...
you have been going on for all the better half of thirty two years. Let me take it a step back and give you the specifics of what most people really don’t want you to know. Genes, it’s the common dominator that ties all living species together. Now you are probably wondering, ...
“Humans inherently avoid dangerous organisms such as bees, but children these days avoid even harmless insects such as butterflies and dragonflies (蜻蜓),” he says. “I have long wondered why so many of today’s children react like this.” F) Although the children’s reactions were ...
On the one hand, it may seem that the obvious account of why different species sustain effects at different time-scales is a neural one; organisms capable of sustaining increasingly abstract effects (e.g., "tomorrow," "next June," or "forever") can do so beca...
we can be fairly confident that most of the time they are faithful representations of the actualthingsout there. We can very reasonably expect that evolution has shaped those representations to be a pretty close match to the external world, because organisms that could not accurately and reliably...
but it has more recently been gaining credibility and I am favorably inclined. Examples of group selection processes have been observed in organisms as diverse as bacteria and lions. From a human psychological perspective, it is clear that humans identify with and invest in groups, it is seems ...