Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 22, Problem 11TYK
Apply Evolutionary Thinking How do human activities (such as destruction of natural habitats, diversion of rivers, and the construction of buildings) influence the chances that new species of plants and animals will evolve in the future? Frame your answer in terms of the geographical and genetic factors that foster
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Describe Natural Selection and Speciation. Explain how a new species could form. What three aspects of living organisms are responsible for the operation of natural selection?
-Philosophy of science
Imagine a circumstance in which a large forest is fragmented into smaller areas due to agricultural and urban expansion and the construction of roads. Use your knowledge of various selection processes to explain how such changes could lead to speciation and also threaten the survival of species in fragmented forest communities.
Look at picture attached
A) What does the phylogeny suggest about the evolutionary process that led to the trait differences by habitat?
a. convergent evolution
b. adaptive radiation
c. phenotypic plasticity
B) Choose different functional forms from two of the habitats shown in the collage and describe how one or more differences in form may represent an adaptation to their different environment. Example: compare plant form for lobeliads in montane bog to cloud forest understory
Chapter 22 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 22.1 - How do the morphological, biological, and...Ch. 22.1 - What is clinical variation?Ch. 22.2 - What is the difference between prezygotic and...Ch. 22.2 - Prob. 2SBCh. 22.3 - Prob. 1SBCh. 22.3 - Why might insects from different host races be...Ch. 22.4 - Prob. 1SBCh. 22.4 - Prob. 2SBCh. 22 - The biological species concept defines species on...Ch. 22 - Prob. 2TYK
Ch. 22 - A characteristic that exhibits smooth changes in...Ch. 22 - Prezygotic is isolating mechanisms: a. reduce the...Ch. 22 - In the model of allopatric speciation, the...Ch. 22 - Prob. 6TYKCh. 22 - If two species of holly (genus Ilex) flower during...Ch. 22 - Prob. 8TYKCh. 22 - An animal breeder, attempting to cross a llama...Ch. 22 - Prob. 10TYKCh. 22 - Apply Evolutionary Thinking How do human...Ch. 22 - Prob. 12TYKCh. 22 - Prob. 13TYKCh. 22 - Prob. 14TYKCh. 22 - Prob. 15TYKCh. 22 - David Hills of Baylor University noted that three...
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- A principle of biology is that all species (past and present) arerelated by an evolutionary history. Are birds living dinosaurs?arrow_forwardANSWER THE FOLLOWING ACTIVITY: a. What is Hardy-Weinberg Principle? b. What are the conditions that must be met for genetic equilibrium? LESSON 2 a. What are the various types of reproductive isolating mechanisms that can lead to speciation? b. What are the different modes of speciation? c. Explain how evolution produce the tremendous amount of diversity among organisms. LESSON 3 a. What is scientific classification? b. Why does biologist classify organism? c. Enumerate the scientist and cite their respective contributions in the development of evolutionary thought.arrow_forwardAssume you are studying two different species of plants that have evolved purple flowers. You reconstruct the ancestor of these plants and discover the ancestor plant had pink flowers. You decide to investigate the development of the purple flowers and find that the plants both evolved purple flowers via the same purple pigment gene pathway. This discovery is best described as which of the following? a. Equal Fitness Landscapes b. Heterochrony c. Parallel Evolution d. Convergent Evolutionarrow_forward
- The evolution of flight feathers might have allowed ancestral dinosaurs to rapidly diversify into the birds living today. If true, this would an example of Question 22 options: Polyploidy Assortative mating Global adaptive radiation Founder effect Analogyarrow_forwardEvolution: Describe an example of another species that has undergone evolution in response to human-driven changes to its environment.arrow_forwardDiscuss different causes of speciation, in evolutionary biology.arrow_forward
- Evolutionary Thought: answer the question in essay form. Explain the benefits, effects, and contributions of the Five Agents of Evolutionary Changearrow_forwardSpeciation can occur when two populations of a species become separated from each other. What is the best explanation for why speciation occurs?arrow_forwardExplain why the shape and size of a bird's beak is the result of natural selectionarrow_forward
- Kettlewell's experiment is included in most biology texts as an example of evolution How do we know that the moths evolved?arrow_forwardExplain gene flow as a force of evolution (how does gene flow contribute to biological change?)arrow_forwardIn your own words, describe why the orange beetles survived in relationship to what you have learned about natural selection.arrow_forward
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