BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
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Chapter 14.3, Problem 3MC
Summary Introduction
To discuss:
The reason why is it difficult to determine whether
Concept introduction:
Allopatric speciation is the speciation that occurs when two population of same species become isolated from each other due to geographic changes. Parapatric speciation is used to describe the relationship between organisms whose ranges do not significantly overlap. Sympatric speciation is the process in which new species is evolved from a single ancestral species.
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Chapter 14 Solutions
BIOLOGY
Ch. 14.1 - What is the relationship between macroevolution...Ch. 14.1 - Prob. 2MCCh. 14.1 - What are some of the challenges in defining...Ch. 14.2 - Prob. 1MCCh. 14.2 - Prob. 2MCCh. 14.3 - Distinguish among allopatric, parapatric, and...Ch. 14.3 - Prob. 2MCCh. 14.3 - Prob. 3MCCh. 14.4 - Describe the theories of gradualism and punctuated...Ch. 14.4 - Prob. 2MC
Ch. 14.5 - Prob. 1MCCh. 14.5 - Prob. 2MCCh. 14.5 - Prob. 3MCCh. 14.6 - Describe the taxonomic hierarchy.Ch. 14.6 - What is the advantage of a cladistics approach...Ch. 14.6 - Distinguish between ancestral and derived...Ch. 14.6 - Prob. 4MCCh. 14.6 - How is a cladogram constructed?Ch. 14.6 - Prob. 6MCCh. 14.7 - Prob. 1MCCh. 14.7 - Prob. 2MCCh. 14 - The biological species concept defines species...Ch. 14 - Prob. 2MCQCh. 14 - A mountain range separates a population of...Ch. 14 - Prob. 4MCQCh. 14 - Prob. 5MCQCh. 14 - What type of reproductive barrier applies to each...Ch. 14 - How does natural selection predict a gradualistic...Ch. 14 - Why do species become extinct? Choose a species...Ch. 14 - Which of the groups in figure 1.9 represent...Ch. 14 - On figure 14.20, circle a monophyletic group, a...Ch. 14 - Prob. 1PITCh. 14 - Add fertilization and offspring to this concept...Ch. 14 - Draw pictures of allopatric, parapatric, and...Ch. 14 - Prob. 4PIT
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- What is the basic difference between the allopatric and sympatric modes of speciation?arrow_forwarda) How many of the gene trees do you expect to look like the species tree? b) You observe three gene trees in which species X and Z are the closest relatives and seven gene trees where X and Y are the closest relatives. What can you conclude from these data? Group of answer choices Historical hybridization between species W and X Historical hybridization between species X and Y Historical hybridization between species X and Z Historical hybridization between species Y and Zarrow_forwardWhat is the main difference between allopatric and sympatric speciation?arrow_forward
- How can speciation occur sympatrically?arrow_forwardOver time, enough genetic variations can develop within a population to cause it to undergo speciation. Identify the various mechanisms that will prevent different species from being able to reproduce successfully. Which of these mechanisms is the most influential in keeping species sperate?arrow_forwardWhat happens to the renin angiotensin aldosterone system with hf? Identify the factor that is responsible for allopatric speciation and not for sympatric speciation? Recombinant dna technology is used to combine 2 or more strands of different dna?arrow_forward
- What are five geographic barriers that might lead to allopatric speciation?arrow_forwardIndicate the order in which the following steps would take place to result in Parapatric Speciation [enter 1 for the first step, 2 for the second, etc; write only the number -- no words, no spaces] Something happens so that the environment is different in one part of the range relative to the other, even though the populations are still contiguous. As they adapt to their specific environments, the fitness of any hybrid formed is reduced. The populations adapt to their environment in the part of the range where they live. Interbreeding populations connected via gene flow occur across a range. Reproductive isolating mechanisms are selected for so that less fit hybrids are not formed. Two species now exist.arrow_forwardHow come dispersal is still allopatric speciation? I was under the impression that a new geographical barrier would have to develop and separate a once-uniform species. Also, what's the difference between vicariance and allopatric speciation?arrow_forward
- What are hybrid zones, and why can they be viewed as“natural laboratories” in which to study speciation?arrow_forwardA genome duplication event, creating a tetraploid plant from a diploid parent plant, can sometimes result in the creation of a new species. This type of speciation is called allopatric adaptive radiation sympatric gradual speciation Which of the following is an example of a postzygotic barrier? Hybrid offspring of two species of jimsonweeds always die before reproducing One plant lives on acid soil, the other on alkaline soil. Two species of leopard frogs have different mating calls Mallard and pintail ducks mate at different times of the year Pollen of one species of tobacco cannot fertilize a different species of tobacco.arrow_forwardExplain the type of speciation (allopatric, parapatric, or sympatric) most likely to occur under each of the following conditions: A. A pregnant female rat is transported by an ocean liner to a new continent. B. A meadow containing several species of grasses is exposed to a pesticide that promotes nondisjunction. C. In a very large lake containing several species of fish, the water level gradually falls over the course of several years. Eventually, the large lake becomes subdivided into smaller lakes, some of which are connected by narrow streams.arrow_forward
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