Multiple

... Life, but on getiing a few moves towards it was repeatedly stymied and pushed back again by natural, disruptive Events. The story became one of multiple and various “failed” attempts over vast periods of time, which separately and differently moved the situation forwards, but at different times ...

See entire post

... does not require all traits, or even all traits under selective pressure, to be one inheritable as a discret unit. Quantitative traits, (under multiple gene control, like height in humans) can be put under selective pressure, just as qualitative traits that are under the control of a single ...

See entire post

... true, but even if you had two reptiles or two amphibians of different species, the chances that they could breed would be very small. There are multiple resons for this starting from simple phsyiological and behavioral differences to more complex elements such as chromosome numbers and genetics. ...

See entire post

... only few groups have noticed this phenomenom, so I'm not sure if the effect is that profound anyway. Cortisol (and stress in general) has multiple functions in the body, so isolating one single cause for possible slower wound healing is probably very difficult in the first place.

See entire post

... accuracy of replicating the DNA genome in a certain amount of time as another reason, because there is wear and tear on a protein. If you can have multiple replicating enzyme complexes (replisomes) doing just a part of the genome instead of doing the whole genome, then it can get done efficiently ...

See entire post