- No, Darwin had already been working on the theory for 20 years (and had dated documents to prove this). He deserved some credit along with Wallace. - No, it seems that Darwin and his colleagues did right by Wallace (and also did right by Darwin). They both deserved to share the credit. 27. From module 7.1 in Cogbooks: Which of the following were modified through artificial selection by humans? - Dog - Cabbages - Chickens 28. From module 7.1 of Cogbooks: Why is it that for many animal lineages, we don't see many transitional fossils? - Fossilization is chancy and usually only preserves hard skeletons or exoskeletons. - While it has taken a while, science is gradually filling in the blanks and more transitional fossils are being discovered. 29. From Cogbooks module 7.1: In the video, 'Aposematic trials', what was the function of the bright coloration in the Grape Leaf Skeletonizer caterpillar. - Warning coloration: a means to warn potential predators that they taste bad. 30. From Cogbooks module 7.1: According to Professor Rutowski in the video, 'Interview with Ron Rutowski', what information do the spots and colors on the butterfly wings convey (Pipevine swallowtail)? - The spots and colors can convey bad-taste in some cases and convey mate quality in others. 31. Why might females (in such species as peacocks) choose males with big displays - that obviously make them a target for predators? - Such gaudy displays may be an 'honest signal' of health and fitness. - By mating with a 'sexy' male, the female may also have 'sexy' sons that will have good prospects in mating. 32. From Cogbooks module 7.1 the natural selection simulator: In the simulation, is there any evidence to assume that one color of bug is less fit than another?
- Yes, the purple and blue bugs were the slowest and easiest to pick off with the 'hawk' - resulting in lower survival (and thus lower fitness) for bugs of those colors. 33. From Cogbooks module 7.1 using the natural selection simulator: As you played each round, what happened to the average speed of the bugs? Does it get easier or harder over time to catch the bugs? - The average speed got faster. It was more difficult to catch the bugs later on in the simulation. 34. The result of a cross between two related subspecies or between related varieties. When distantly related animal species are crossed, the result is usually sterile. - Hybrid 35. The author of the book, 'The Origin of Species...' He was the co-discoverer of the theory of evolution by natural selection. - Charles Darwin 36. When a species disperses to a new and uninhabited area and over time that the species develops into many new species to fill the many lifestyles now available in this new region. - Adaptive radiation 37. Also known as 'survival of the fittest' - this is the mechanism by which evolution takes place in living organisms.
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