Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 22.2, Problem 2LO
Summary Introduction
To identify: The sympatric organisms formed from the two populations that are partially reproductively isolated.
Introduction: Reinforcement leads to character displacement after reproductive isolation mechanism. The two populations give rise to new hybrid known as sympatric
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Chapter 22 Solutions
Biology
Ch. 22.1 - Understand the biological species concept and why...Ch. 22.1 - Define the two kinds of reproductive isolating...Ch. 22.1 - Describe the relationship of reproductive...Ch. 22.2 - Prob. 1LOCh. 22.2 - Prob. 2LOCh. 22.3 - Prob. 1LOCh. 22.3 - Prob. 2LOCh. 22.4 - Compare and contrast sympatric and allopatric...Ch. 22.4 - Prob. 2LOCh. 22.5 - Prob. 1LO
Ch. 22.5 - Prob. 2LOCh. 22.6 - Prob. 1LOCh. 22.6 - Prob. 2LOCh. 22.7 - Prob. 1LOCh. 22.7 - Prob. 2LOCh. 22 - Prob. 1IQCh. 22 - Prob. 2IQCh. 22 - Prezygotic isolating mechanisms include all of the...Ch. 22 - Reproductive isolation is a. a result of...Ch. 22 - Problems with the biological species concept...Ch. 22 - Prob. 4UCh. 22 - Prob. 5UCh. 22 - Prezygotic isolation a. always involves mechanisms...Ch. 22 - Speciation by allopolyploidy a. takes a long time....Ch. 22 - Adaptive radiation a. is the result of enriched...Ch. 22 - Prob. 9UCh. 22 - Character displacement a. arises through...Ch. 22 - Prob. 11UCh. 22 - If reinforcement is weak and hybrids are not...Ch. 22 - Natural selection can a. enhance the probability...Ch. 22 - Hybridization between incompletely isolated...Ch. 22 - Natural selection can lead to speciation a. by...Ch. 22 - Natural selection can lead to the evolution of...Ch. 22 - Prob. 2SCh. 22 - Refer to figure 22 6 In Texas. Drummond s phlox is...Ch. 22 - Refer to figure 22.16. Geospiza fuliginosa and...
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- Differentiate between how prezygotic and postzygotic isolating mechanisms lead to reproductive isolation.arrow_forwardDefine the term persecuted species. Describe at least three persecuted species that live in the United States.arrow_forwardwhat are some plausible phenotypic changes that we might see in different vector species as climate change progresses? How might these changes affect interspecific competition?arrow_forward
- Give some examples of possible density-dependent limits on bald eagle populationsarrow_forwardDistinguish between prezygotic and postzygotic isolating mechanisms, and provide an example of each.arrow_forwardWhen resources are limited, explain 4 ways by which the two species on the Bahamas Island( A. angusticeps and A. carolinensis) can coexistarrow_forward
- A population is solely comprised of 152 A2A2 individuals. 7 A1A1 individuals migrate in and contribute to the mating pool. What is the frequency of A1A2 individuals in the offspring?arrow_forwardBehavioral isolation is considered which type of reproductive barrier? a prezygotic b postzygotic c overlapping d heritablearrow_forwardExplain why parapatric speciation is more likely to occur in sedentary organismsarrow_forward
- Biologically, what conditions are necessary for stable coexistence of competitors? Describe the major ways that species can adapt to enhance the probability of stable coexistence.arrow_forwardConsider two communities where P. rufipes occurs sympatrically with four other parasitoid wasps: Cotesia glomerata, Aphidus ervi, Aphidius colemani and Microplitis croceipis. Calculate the diversity indices for both communities. Community A1 Community A2 Species Name N H’ Species Name N H’ P. rufipes 60 P. rufipes 41 C. glomerata 45 C. glomerata 55 A. ervi 112 A. ervi 77 A. colemani 23 A. colemani 121 M. croceipis 44 M. croceipis 77 HS(A1) = __________________________ HS(A2) = __________________________arrow_forwardWhat is an Endemic? Provide examplesarrow_forward
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