BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 1.2, Problem 1MC

If the human and kangaroo in figure 1.9 switched places, would the evolutionary tree show different relationships among the three animals from what it shows now? Why or why not?

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Imagine that you are an evolutionary biologist currenyly studying a particular species of snake on an island off the coast of Durban, South Africa and that you have information indicating that1000 years ago, the same species of snakes in that island was observed to exist in a variety of colours (Red blue,yellow green) and that most of the snakes were blue. This same species of snakes and the same mixof colours were also found on the mainland (i.e Kwazulu Natal)  Assuming that all the snakes are descended from an ancestral blue snake, explain this change in colour frequency (evolution) as though it were based solely on each of the following processes.  a. Natural selection  b. Bottleneck effect  c. Founder effect
Why are fruit flies good subjects with which to observe the process of evolution through natural selection?         Fruit flies are good subjects because they have very long generations, and scientists can control their development over long periods of time.         Fruit flies are good subjects because they have short generations and scientists can control their development in the lab.         Fruit flies change into different species of flies each generation, so they have more features to study.         Fruit flies are K-strategists, and these are easier to study over short periods of time.
Because the genomes of chimpanzees and humans are almost identical, and the difference between them are no greater than any two humans, their classification has been changed. Chimpanzees and humans are placed in the same family and subfamily. They are in different “tribes”, which is a rarely used classification category between subfamily and genus. The former classification of chimpanzees and humans placed them in different families. Do you believe that chimpanzees should be classified in the same family and/or subfamily as humans? Or do you prefer the previous classification? Which way seems prejudicial? Give your reasonings

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BIOLOGY:THE ESSENTIALS (LL) W/CONNECT

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