Mar 14, 2014 at 10:34am
1.What were the two contributions Darwin made to evolutionary thought? 

2.Explain the principle of natural selection. 

Your response should be at least 75 words in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations 
Additional Requirements 

Level of Detail: Show all work 
Other Requirements: Your response should be at least 75 words in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations