wha does "geograpical causes" mean?
A widening of a lake for example. It is a physical barrier. Not forest fires or volcanic eruptions.
They benefited from it because rich river valleys such as the Huang He, China has deserts, the Himalaya, Tibetan Plateau, and the Tian Shan mountains on the west. The bad things are that the rivers cause a lot of floods and because the dam will cause some land areas to be submerged and people in rural areas to be relocated.
The many mountains cause people to work and live on them
yes, I do but im not giving them to you people cause i am awesome
Early marriage also causes those people to have children early
It prevents the two populations from interbreeding. :) -Apex-
it prevents gene flow between populations
A widening of a lake for example. It is a physical barrier. Not forest fires or volcanic eruptions.
The implications of not carrying out the safe isolation procedure can be quite severe. In cases of a contagious disease, this will cause more people to be affected due to lack of isolation.
The central idea here is that when populations are geographically separated, they will diverge from one another, both in the way they look and genetically. These changes might occur by natural selection or by random chance (i.e., genetic drift), and in both cases result in reproductive isolation.
it cause damage
People who may carry disease may be put into 'isolation'.
sweg
Any factor that in nature prevents interbreeding between individuals of the same species or of closely related species, for example geographic separation is itself a reproductive isolation because is a factor that prevents interbreeding. -extinction of one species -production of infertile offspring -development of physical differences
Long term isolation can cause new species to form if the isolation has been over a very long time.
Being shipwrecked on a desert island would do it.
It is possible that ADHD meds can cause feelings of isolation since they work to improve focus. If you have too deep of a focus, you might feel cut off from others.