PRINTED VERS OF Science Natural Selection

 



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Australian Icons Research

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ADDENDUM FOR BIOLOGY NATURAL SELECTION

Geographical isolation is characterised in this experiment by the difference of the swamp and forest and the existence of a desert in between the two ecosystems. Natural features are the main cause of isolation. These include rivers and mountain ranges. The geographical isolation of landmasses by continental drift is another good example. In general, reproductive isolation is the inability of related or different species breeding due to differences involving many factors. These include geographical, behavioural, physiological, or genetic barriers or differences (isolating mechanisms). Speciation could occur in this simulation in various ways. There are many types or modes of speciation. Since the yellow frogs in the swamp have very little variation, they will be much less likely to survive when the environment changes. If we suppose the forest became a bush, the frogs would have a higher chance of survival. In our simulation there was no movement between the two ecosystems. If the sw...
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