BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 22, Problem 1U
Prezygotic isolating mechanisms include all of the following except
a. hybrid sterility.
b. courtship rituals.
c. habitat separation.
d. seasonal reproduction
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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 an example of postzygotic reproductive isolation?a. Sperm of species A dies in the oviduct of species B before fertilization can take place.b. Hybrid zygotes between species A and B are spontaneously aborted early indevelopment.c. The mating seasons of species A and B do not overlap.d. Males of species A are not attracted to the pheromones produced by the females ofspecies B.
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
- If 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_forwardWhat is required for sympatric speciation to occur? A. Continuous gene flow between different populations B. Geographic separation of populations C. Two populations that are different begin to reproduce and create hybrids D. Emergence of a reproductive barrierarrow_forwardProblems 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.arrow_forward
- The first step leading to allopatric speciation is (a) hybrid inviability (b) hybrid breakdown (c) adaptive radiation (d) geographic isolation (e) paedomorphosisarrow_forwardThe reproductive isolating mechanism in which two closely related species live in the same geographic area but reproduce at different times is (a) temporal isolation (b) behavioral isolation (c) mechanical isolation (d) gametic isolation (e) hybrid inviabilityarrow_forwardWhich variable increases the likelihood of allopatric speciation taking place more quickly? a. lower rate of mutation b. longer distance between divided groups c. increased instances of hybrid formation d. equivalent numbers of individuals in each populationarrow_forward
- What is the ecological 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 ancestorarrow_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_forwardWhich 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_forward
- Which variable increases the likelihood of allopatric speciation taking place more quickly? a. lower rate of mutation b. longer distance between divided groups c. increased instances of hybrid formation d. equivalent numbers of individuals in each populationarrow_forwardThe first step leading to allopatric speciation is (a) hybrid inviability(b) hybrid breakdown (c) adaptive radiation(d) geographic isolation (e)paedomorphosisarrow_forwardWhat 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 ancestorarrow_forward
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