6) Two of the greenhouse gases that may be responsible for the increased ice melting in Greenland are A) hydrogen and helium
C) oxygen and silicon
B) carbon dioxide and methane
D) nitrogen and oxygen

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

The term equestrian relates to which animal? bulls cows horses pigs

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.