Based on the biological species concept, which of the following would lead biologists to conclude that different populations of lizards were actually a single species rather than two different species? A.) lizards from the two different populations mate rarely, and produce hyrbid offspring that are sterile B.) Lizards from the two differnt populations mate during different seasons C.) Lizards from the two different populations mate regularly and produce sterile offspring D.) Lizards from the two different populations matre regularly and produce viable offspring capable of reprod

Based on the biological species concept, which of the following would lead biologists to conclude that different populations of lizards were actually a single species rather than two different species? A.) lizards from the two different populations mate rarely, and produce hyrbid offspring that are sterile B.) Lizards from the two differnt populations mate during different seasons C.) Lizards from the two different populations mate regularly and produce sterile offspring D.) Lizards from the two different populations matre regularly and produce viable offspring capable of reprod

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter17: Processes Of Evolution

Section: Chapter Questions

Problem 8SA: Which of the following is not part of how we define a species? a. Its individuals appear different...

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If 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?
How would you design an experiment to determine whether two populations of snakes are distinct species according to the biological species concept? For which types of populations does the biological species concept not work as a way of determining how they are related?
Consider the graphic that is presented and depicts the end-point for the following scenario. At some point in the past, species A resided as a large population entirely within a rectangular geographical area. The population became divided into two isolated populations when, during a major earthquake, a mountain range arose and disrupted gene flow. Over time, the two new populations evolved independently from one another, yielding species B and C. The population comprising species C became divided into two isolated populations when another earthquake created an escarpment that disrupted gene flow. Over time, these two new populations evolved independently from one another, yielding species D and E.Imagine that you were to arrive to the region long after species D and E had evolved, completely oblivious to the scenario that is described above; survey the region for living species in this group; and conduct a cladistic analysis on those species. Assuming that the data that you were to…
n which situation would it make sense to use the morphological species concept? When you are able to collect data about how individuals in your study use their habitat, but you are unable to determine if they interbreed When working with fossils from extinct organisms When you only have genetic data about each organism in your study When you are not able to collect data about how individuals in your study use their habitat, but you are able to collect reproductive data
Which of the following is an advantage of sexually reproducing populations over asexually reproducing populations? A. Sexually reproducing populations produce genetically identical offspring. B. Sexually reproducing populations require partners to reproduce. C. Sexually reproducing populations are more resilient against the effects of harmful mutations. D. Sexually reproducing populations do not require partners to reproduce.
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
When the isthmus of Panama (land bridge that connects north and south America) arose about 3 million years ago, it caused species of fish to diverge into sister species located in either the caribean or pacific ocean. Why did they form separate species? A) Because this is an example of sympatric speciation B) Because the tides are different on each side of the land bridge C) Because different predators in each ocean caused the populations to diverge D) Because the populations were reproductively isolated
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.
Which condition is the basis for a species to be reproductively isolated from other members? a. It does not share its habitat with related species. b. It does not exist out of a single habitat. c. It does not exchange genetic information with other species. d. It does not undergo evolutionary changes for a significant period of time.
Which statement best explains why an understanding of life-history trade-offs is important when examining the fitness of an organism? A. Because individuals may not be producing the maximum number of offspring they possibly can in any particular breeding season. B. Because in any particular breeding season, individuals may need to produce fewer offspring to enhance their own survival. C. Because individuals need to live longer, so they will not produce the maximum number of offspring each season. D. Because when individuals need offspring, they can choose whether to reproduce or not.
Would each of the following examples of reproductive isolation be considered a prezygotic or postzygotic mechanism? A. Horses and donkeys can interbreed to produce mules, but the mules are infertile. B. Three species of the orchid genus Dendrobium produce flowers 8 days, 9 days, and 11 days after a rainstorm. The flowers remain open for 1 day. C. Two species of fish release sperm and eggs into seawater at the same time, but the sperm of one species do not fertilize the eggs of the other species. D. Two tree frogs, Hyla chrysoscelis (diploid) and Hyla versicolor (tetraploid), can produce viable offspring, but the offspring are sterile.
Classify the following scenarios with the appropriate term regarding different types of reproductive barriers. a. One species of owl is diurnal (active in daylight) and another is nocturnal (active at night)________________________ b.The blue footed booby will only mate after a male displays their bright blue feet_________________________ c. The hybrid offspring of a horse and donnkey is sterile___________________________________ 2. Use the diagram to the right to answer the following questions. c.Which letter (A, B, or C) represents the original population of fish? b.Which letter represents allopatric speciation? Explain your answer. c.Which letter represents sympatric speciation? Explain your answer.