Looduslik valik ja muutlikus
olemas.
Valik: Suunav stabiliseeriv lõhustav ---
sagedus
kohasus
Keskmine väärtus
populatsioonis
Pideva tunnuse korral
Vaata simulatsioone: http://www.evotutor.org/Selection/Sl5A.html
suunav valik
The fossil lineage of the horse provides a
remarkable demonstration of directional
succession. The full lineage is quite complicated
and is not just a simple line from the tiny dawn
horse Hyracotherium of the early Eocene, to
today's familiar Equus. Overall, though, the horse
has evolved from a small-bodied ancestor built
for moving through woodlands and thickets to
its long- legged descendent built for speed on
the open grassland. This evolution has involved
well- documented changes in teeth, leg length, and
toe structure.
stabiliseeriv valik – inimese sünnikaal
13700 sündi UK 1935-1946
Elunemus 4 nädalasena
annaabi.ee 
