Pre-Darwinian Theories

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This process is similar to the bacteria experiment described above. Selection of specimens to breed Insect with a high reproductive potential Dog variety resulting from selective breeding over many generations based on particular traits is, in effect, changing the environment for the population. Those individuals lacking the desirable characteristics are not allowed to breed. Therefore, the following generations more commonly have the desired traits. Species that mature and reproduce large numbers in a short amount of time have a potential for very fast evolutionary changes. Insects and microorganisms often evolve at such rapid rates that our actions to combat them quickly lose their effectiveness. We must constantly develop new pesticides, antibiotics, and other measures in an ever escalating biological arms race with these creatures. Unfortunately, there are a few kinds of insects and microbes that are now significantly or completely resistant to our counter measures, and some of these species are responsible for devastating crop losses and deadly diseases. Antibiotic resistance--how mutation and fast reproductive rates of microorganisms can outpace modern medical breakthroughs This link takes you to an external website. To return here, you must click the "back" button on your browser program. If evolution has occurred, there should be many anatomical similarities among varieties and species that have diverged from a common ancestor. Those species with the most recent
common ancestor should share the most traits. The fact that wolves, dogs, and other members of the genus Canis are anatomically very similar, for instance, is due to the fact that they are descended from the same ancient canine species. Wolves and dogs also share similarities with foxes, indicating a slightly more distant ancestor with them. Genetic Tool Kit--evidence of a common set of genes for body parts shared by many, if not most, creatures This link takes you to a video at an external website. To return here, you must click the "back" button on your browser program. (length = 4 mins, 47 secs) Science and Faith--roundtable discussion about resolving conflicts with religion This link takes you to an external website. To return here, you must click the "back" button on your browser program. Evolving Ideas: Why Is Evolution Controversial Anyway--reconciling a belief in science and religion This link takes you to a video at an external website. To return here, you must click the "back" button on your browser program. (length = 6 mins, 36 secs) Given the abundant evidence supporting the theory of biological evolution, it is highly
Page 1 and 2: Pre-Darwinian Theories The acceptan
Page 3 and 4: physical appearance and classified
Page 5 and 6: thought by Lamarck to be humans. He
Page 7 and 8: century Scottish geologist, James H
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Page 11 and 12: species differed from each other in
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Page 19 and 20: Copyright © 1998-2003 by Dennis O'
Page 21 and 22: What is Evolution Biological evolut
Page 23 and 24: organisms over many generations 4.
Page 25 and 26: proteins in living things are made
Page 27: Subsequently, their traits will be
Page 31: the unstriped blue lilac plant. Tho

Pre-Darwinian Theories

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