Which of the following if not a geographic boundary of europe
a) the atlantic ocean
b) the ural mountains
c) the alps
d)the mediterranean sea

Where does oxidative phosphorylation take place

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.

What is unusual about the iraq mountains ,in spite of their old age?