The concordance rate for gay fraternal twins is more than twice as high as for non-twin brothers, lending support to the idea that ____.
a. environment plays a large role in the development of homosexuality
b. homosexuality is mostly biologically driven
c. being a twin increases one's chance of being homosexual
d. being a twin decreases one's chance of being homosexual
Question 2
The largest twin study to date suggests that for men, genetic factors control between ____ of their sexual orientation.
a. 2 and 7 c. 34 and 39
b. 17 and 22 d. 51 and 56
On the slopes of Chimborazo, a 6,310 m high volcanic peak in the Andes Mountains of Ecuador, Alexand
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Advection of an air mass with a different ELR (environmental lapse rate).
High net primary productivity
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Consider the production function ( ) 0.5 0.5 Y = AK L . Suppose both saving rate (s) and the ...