Europe is an "intercontinental highway" of sorts for species that migrate between select all that apply 1. africa 2. australia 3. western asia 4. north america

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.