Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 8RQ
In what sense are humans currently acting as agents of selection on other species? Name some traits that are favored by the environmental changes humans cause.
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Students have asked these similar questions
1) Baby head size is an example of
2) Giraffe neck length is an example of
3) Rabbit Size is an example of
selection.
selection.
selection.
Natural selection and artificial selection or selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. Changes in genetic traits have occurred over generations through both natural selection and selective breeding although the occur through different means. What characterizes only artificial selection? Choose all that apply.
A) chickens that lay larger eggs are favored
B) selection increases the chances of surviving
C) selection make a species stronger and fit for survival
D) selection favors the desired characters in the new organisms
Types of Selection
Match each situation to the type of selection most likely to occur. NOTE: If you want to change your selection, you'll need to delete the one you already chose.
After
you delete it, the list of choices will pop back up and you can make a different choice.
Rabbits with medium colored fur blend into the background, but
very light or very dark fur colors are easier for predators to spot.
disruptive selection
Drab colored guppies are less likely to be eaten by predators, but
brightly colored males are preferred by females.
sexual selection
Butterflies with small wings can easily find hiding places to escape
predators. Butterflies with large wings can fly higher and faster to
directional selection
stabilizing selection
escape predators.
A species of rodent is vulnerable to cold weather when small, but
able to keep warm when large.
Chapter 15 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 15.1 - identify some of the thinkers whose ideas set the...Ch. 15.1 - Prob. 2CYLCh. 15.1 - define evolution?Ch. 15.2 - A recent study found that Galpagos mockingbirds on...Ch. 15.2 - Prob. 2TCCh. 15.2 - explain how natural selection works and how it...Ch. 15.2 - describe the logic, based on four postulates, by...Ch. 15.3 - The fossil history of some kinds of modem...Ch. 15.3 - What Good Are Wisdom Teeth and Ostrich Wings?...Ch. 15.3 - Are a peacocks tail and a dogs tail homologous...
Ch. 15.3 - Between 70% and 85% of people will experience...Ch. 15.3 - describe the evidence that evolution has occurred?Ch. 15.3 - explain the difference between similarity due to...Ch. 15.3 - What Good Are Wisdom Teeth and Ostrich Wings? Just...Ch. 15.4 - To reduce the incidence of pesticide resistance,...Ch. 15.4 - describe some observations and experiments that...Ch. 15.4 - CONSIDER THIS Some advocates of the view that all...Ch. 15.4 - Some advocates of the view that all organisms were...Ch. 15 - Whale skeletons contain nonfunctional pelvic bones...Ch. 15 - Darwin was influenced by Malthuss thinking about...Ch. 15 - Prob. 3MCCh. 15 - Which of the following is not required for...Ch. 15 - Prob. 5MCCh. 15 - The flipper of a seal is homologous with the _____...Ch. 15 - Prob. 2FIBCh. 15 - Georges Cuvier espoused a concept called ______ to...Ch. 15 - Prob. 4FIBCh. 15 - Prob. 5FIBCh. 15 - Darwin's postulate 2 states that ______. The work...Ch. 15 - Prob. 1RQCh. 15 - Distinguish between catastrophism and...Ch. 15 - Describe Lamarcks theory of inheritance of...Ch. 15 - What is natural selection? Describe how natural...Ch. 15 - Describe how evolution occurs. In your...Ch. 15 - What is convergent evolution? Give an example.Ch. 15 - How do biochemistry and molecular genetics...Ch. 15 - In what sense are humans currently acting as...Ch. 15 - In discussions of untapped human potential, It is...Ch. 15 - Does evolution through natural selection produce...
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- Sexual selection tends to cause bigger size,more elaborate weaponry, or brighter colors in males. Is this an example of stabilizing,directional, or disruptive selection?arrow_forwardFor a chamelons ability to color change, what type of selection (directional selection, stabilizing selection, disruptive selection, sexual selection, etc) would this trait be under?arrow_forwardBecca loves German Shepherds and wants to have one as a pet. She locates a breeder and agrees to purchase one of the puppies. Which type of selection occurs from this type of human intervention? directional selection stabilizing selection disruptive selection artificial selectionarrow_forward
- What is artificial selection? 1 point When the environment selects the best traits to survive and be passed on to future generations. When females of the species select the best traits to survive and be passed on to future generations. When males of the species select the best traits to survive and be passed on to future generations. When humans select the best traits to survive and be passed on to future generations.arrow_forwardConsider the roles of different types of selective pressure. Part A: Compare and contrast sexual selection, artificial selection, and natural selection. Part B: Give examples of traits that may be favored in sexual selection, artificial selection, and natural selection. For each, explain if the trait would be favored by one type of selection but selected against by another type of selection. BI 1000 MacBook Air O00 F1 F2 F3 F4 F5 F6 F7 F8 $ % & * 2 3 4 6.arrow_forwardThe domestication or breeding of animals to have as pets, livestock on farms, or for work purposes is a form of artificial selection. Charles Darwin used these practices to support his theory of species change by natural selection. How is artificial selection similar to natural selection? When animals with favorable traits are bred with animals with unfavorable traits, the offspring will have favorable traits, so breeders were changing species by removing certain traits. For artificial selection to work, only the strong survive to reproduce. By breeding animals with specific traits, breeders were able to produce a wide variety of breeds within a short period of time. Artificial selection involves breeding two different species and determining if a hybrid organism can be produced.arrow_forward
- Under which of the following scenarios would variation be maintained? Selection acting on a dominant high fitness allele Selection acting on a recessive high fitness allele Selection favoring heterozygotes Selection acting against heterozygotes None of the abovearrow_forwardWhat is artificial selection? Provide an example.arrow_forwardignore the words after type of selectionarrow_forward
- In a habitat there are red bugs and green bugs. the birds prefer the taste of red bugs. so soon there are many green bugs and dew red bugs. the green bugs reproduce and make more green bugs and eventually there are no more red bugs. what type of selection is this? give another example of this type of selectionarrow_forwardCompare and contrast directional selection and disruptive selection, and provide an example of each.arrow_forwardWhen we take, say, 100 individuals of a species of beetle from the wild and place them in a new environment that is not so different that they are unable to thrive but different enough so that they are experiencing a new selective regime, say, a lower temperature, what typically happens? A - Sexual selection causes some larvae to be able to survive in the cooler temperatures and other individuals to be unable to survive because they need warmer temperatures. B - We are unable to measure phenotypic selection, presumably because we do not have much variation among individuals for how they handle temperature. C - The founder event assures us that the new population will be strictly representative of the source population (especially if we took all the 100 from the same location rather that from throughout the range of the species). D - The population evolves to be tolerant of the lower temperature; it can do this because of latent variation already in the 100 founding individuals. E -…arrow_forward
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