A. darwin's theory of evolution by natural selection has been solidly demonstrated. b. the failure to discover fossil intermediates refutes darwin's theory of evolution by natural selection. c. darwin's theory of evolution by natural selection is a random process. d. darwin's theory of evolution by natural selection violates the second law of thermodynamics. e. darwin's theory of evolution by natural selection can explain small changes within species and major differences among species.

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.