I)Darwin's Dilemma A)Darwin set sail on December 27, 1831 for a cruise around the world 1)He was well educated and had a strong interest in natural history 2)He also had keen powers of observation and an analytical mind 3)Each place he went he collected animal and plant specimens to his collection (a)He examined his specimens and filled notebooks with his observations B)Throughout the voyage he witnessed countless wonders of nature 1)He demanded explanations for these wonders II)The Diversity of Life A)When Darwin visited tropical South America he saw countless species 1)In one ...

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• Grade Level: High School

How can the many similarities and differences among plants and animals be explained? ... -oOo- Studies state that difference from the last generation would be a product of mutations. It would be very possible that the evolution was caused by some changes in the DNA pattern. ... -oOo- Comparisons of blood proteins and the DNA and the RNA of the African apes with those of the human beings indicate that the line leading to modern people did not split off from the chimpanzee and the apes until comparatively late in evolution. ... -oOo- DNA extractions were done on both species the humans to...

• Word Count: 1854
• Approx Pages: 7
• Grade Level: High School