Exam 15: Darwin and Evolution
During a break at work you and a coworker begin discussing the topic of evolution. He indicates that he does not believe in evolution because it is just a theory about how life originated and this is in direct conflict with the beliefs he was taught during his childhood. How would you convince him that evolution is factual?
Answers may vary but should include some variation of the following points:
1. You should explain to him that a theory in science is something that has data to support it. Theory is not a guess in the scientific context.
2. You should explain that evolution does not try to explain how life originated. Evolution explains how the diversity of life emerged after the origin of life.
3. Scientists are still trying to determine how life originated but that is a totally separate question from evolution.
A line of evidence NOT considered by Darwin in his development of the theory of natural selection is
D
Why are comparing Patagonian hares to European hares or manatees to penguins, excellent examples of adaptation?
Answers may vary. Patagonian hares are unrelated to European hares, although they are sometimes described as "long-legged rabbits." Although the Patagonian hare is a large rodent related to guinea pigs, it shares many of the features and behaviors of rabbits. These unrelated organisms have adapted to similar environments and therefore share similar traits. The same is true for manatees and penguins, which are unrelated. Both have adapted to an aqueous environment by developing flippers which help them to move through the water.
During the course of Darwin's journey aboard the H.M.S. Beagle he was collecting and recording ________ and __________.
Once exposed to an antibiotic drug, bacteria will develop a resistance in order to survive and then pass the resistance onto subsequent generations. This is an example of Lamark's idea of the inheritance of acquired characteristics.
Erasmus Darwin, in his discussion of evolutionary possibilities, included all of the following EXCEPT
When we compare amino acid differences to estimate the evolutionary "distance" between organisms, what assumptions are being made about the rate at which mutations occur over time?
Fossils are the remains and traces of past life that have been preserved in the Earth's crust. What type of fossils is most important in supporting the principle of evolution? Explain your answer and give examples.
Over many generations man has chosen certain desirable characteristics in dogs by allowing dogs possessing those characteristics to reproduce. In this way, 150 breeds of dogs, all in the same species, have descended from wolves. This process is referred to as
When previous adaptations in a species are no longer useful in a changed environment,
The oldest mammals were large, dinosaur-like creatures that flourished over 600 million years ago.
What is the main reason that the alternative explanations to evolution are not considered scientific?
Who was the author of the book Principles of Geology? The book presented arguments to support a theory of geological change, proposing that the earth was subject to slow but continuous erosion and uplift.
Marsupials are more numerous in Australia than South America because of less competition with placental mammals.
Which of the following observations is not part of natural selection as posed by Darwin?
Two fossilized remains are found and scientists assume the two organisms are different but related. Which of the following would determine the relatedness of these two organisms?
Linnaeus developed his classification system for organisms according to
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