week 4 blog - Lauren Brockmiller BOT121 Dr. Moore Weekly...

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Lauren Brockmiller BOT121 Dr. Moore Weekly Blog 4 **Use reading from Chapter 2 in WEiT to answer these*** Charles Darwin wrote in the Origin of Species (chapter 6) “As natural selection acts solely by the preservation of profitable modifications, each new form will tend in a fully-stocked country to take the place of, and finally to exterminate, its own less improved parent or other less- favoured forms with which it comes into competition. Thus extinction and natural selection will, as we have seen, go hand in hand. Hence, if we look at each species as descended from some other unknown form, both the parent and all the transitional varieties will generally have been exterminated by the very process of formation and perfection of the new form. But, as by this theory innumerable transitional forms must have existed, why do we not find them embedded in countless numbers in the crust of the earth?” 1. Using some examples from class and WEiT, can you offer an answer to Darwin’s question?
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This note was uploaded on 08/29/2011 for the course BOT 121 taught by Professor Staff during the Spring '11 term at Miami University.

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