CRITICAL THINKING 3.Buffalo graze on the grasses
of the North American plains, while yaks graze on
grass in northern Asia. How do Darwin's catego-
ries of species variation apply to this comparison?

Why would a drug the damages capsids treat a viral infection

What is the next step in the process after a substrate enters the active site of an enzyme

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.