BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 22, Problem 3U
Problems with the biological species concept include the fact that
a. many species reproduce asexually.
b. postzygotic isolating mechanisms decrease hybrid viability.
c. prezygotic isolating mechanisms are extremely rare.
d. All of the choices are correct.
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Students have asked these similar questions
What is the biological definition of a species?
A) A group of individuals that can breed and produce viable offspring
B) A group of interbreeding individuals that share the same environment
C) A group of individuals that share a common ancestor
Which of the following may be true of two species that are a result of allopatric speciation? Select all that apply.
a
They will be genotypically similar.
b
They will be phenotypically similar.
c
They can produce viable offspring.
d
They will be geographically isolated.
Which of the following is a problem with using the Biological Species Concept?
A. it doesn't apply to asexual populations
B. It doesn't apply to tropical organisms
C. it doesn't take into account reproductive compatibility
D. there are no issues with this species concept
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Two parents, who are thought to be different species, mate and produce viable hybrid offspring. When two of these hybrids mate, their offspring are not viable. What is the BEST interpretation of this data? A. The original parents are the same species because they can breed together. B. The original parents are the same species because they can breed together and produce viable offspring. C. The original parents are not the same species because they produce hybrids that impair the species’ development or survival in its environment. D. The original parents are not the same species because they produce hybrids that can have reduced viability and fertility when they mate.arrow_forwardIf reinforcement is weak and hybrids are not completely infertile, a. genetic divergence between populations may be overcome by gene flow. b. speciation will occur 100% of the time. c. gene flow between populations will be impossible. d. the speciation will be more likely than if hybrids were completely infertile.arrow_forwardAll of the following are examples of prezygotic isolation except? A.) Two closely related species of flowering plants that release and are receptive to pollen at different times B.) Two closely related species of squirrels, one that lives and breeds in woody meadows and another that lives and breeds in the forest interior C.) Two closely related species of song birds whose hybrid embryos die early in development D.) Two closely related species of spiders that have different, species specific, binding proteins on their gametesarrow_forward
- Assume you are studying two species of lizard that occur in sympatry. In allopatry, Lizard Species A is dark brown but in sympatry is black in color. In allopatry, Lizard Species B is brown but in sympatry is light brown. This example is best described as which of the following? a. Postzygotic Isolation b. Character displacement c. Sympatric speciation d. Genetic incompatibility e. Hybridizationarrow_forwardIf a geographic barrier is removed and the two reunited populations intermingle and breed, what attributes must the offspring have in order for the two populations, according to the biological species concept, to be considered still the same species?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_forward
- Which of the following is not an event that can contribute to allopatric speciation? a. A mountain range forms and splits two populations into populations that begin to turn into new species. b. A subset of individuals disperse to a far away island and begin to turn into a new species. c. Two populations breed in the same location but at different times, and therefore begin to turn into two new species. d. A river splits a population into two populations and the two populations begin to diverge on either side of the river. e. All of these are potential contributors to allopatric speciation.arrow_forwarda. 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.arrow_forwardWhich of the following is not part of how we define a species? a. Its individuals appear different from other species. b. It is reproductively isolated from other species. c. Its populations can interbreed. d. Fertile offspring are produced.arrow_forward
- Which of the following would be a good example of premating reproductive isolation? A. Cross-fertilizations between the gray treefrogs, Hyla versicolor and H. chrysoscelis result in a high degree of mortality prior to hatching of hybrid eggs. B. The mule, a hybrid between horses and donkeys is viable, but sterile. C. Males of H. versicolor produce an advertisement call with a much slower pulse rate than males of H. chrysoscelis and females use pulse rate differences to avoid mating with the wrong species. D. Hybrid offspring are produced from matings between leopard frogs and green frogs, but usually die before the tadpoles metamorphose into froglets.arrow_forwardWhich of the following statement about the outcome of the evolution of a new species through hybridization is false? a.The new species may have traits that allow it to inhibit environments different from both parental species. b.The new species is always an intermediate of the two parental species c.The new species may have greater genetic diversity and greater trait diversity than the parental species. d.None of the above What are the two ways of looking into evolution in detail? a.Micro frequency change and ascent with modification b.Genotypic and phenotypic modification c.DNA frequency change and inheritance modification d.Allele frequency change and descent with modification Natural selection increases the frequencies of advantageous alleles and decreases deleterious alleles' frequencies. What are the three categories of natural selection depending on the favored traits? a.Directive, selective and native b.Indicative, normative and fixative c.Directional, stabilizing and…arrow_forwardA physical barrier separates a single species, causing two separate populations to form. Over time these two populations adapt to their environments. Eventually, these two populations are no longer able to successfully reproduce with each other. This is known as __________. A. Sympatric speciation B. Allopatric speciation C. Autopatric speciation D. Parapatric speciationarrow_forward
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