Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 19, Problem 6RQ
Why are species designations of asexually reproducing organisms more likely to differ among different systematists than are the species designations of sexually reproducing organisms?
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1. There are four
2.
Which of the following is the most defensible stațement to make about the role of
haplodiploidy in the evolution of sterile castes?
sterile castes presumably would not have evolved in the hymenoptera in the
absence of haplodiploidy.
owing to the prevalence of multiple mating in social hymenoptera colonies,
haplodiploidy has probably had a negligible effect on the evolution of sterile
castes.
haplodiploidy is the primary factor responsible for sterile castes in ants, wasps
and termites.
haplodiploidy was not an absolute requirement for the evolution of sterile castes
in social insects.
The biological species concept depends on the existence of barriers to reproduction. What are they? Does this species concept apply in all situations? Think of an example from nature where the biological species concept would NOT be that applicable. Which species concept would be better in this example?
How does speciation occur? What environmental factors might contribute to speciation? Can an individual speciate? Use terminology for the two kinds of speciation we have learned about.
What is “gene flow”? What does it mean if there is NO gene flow?
Two groups of individuals are separated by either side of a canyon. One researcher found that they do not cross the canyon at any point. The group on the north side have fluffy tails and thicker coats, and they do not eat moss. The south side individuals eat moss almost exclusively, have a thin coat and tail, but otherwise are generally identical. When in the lab they mated successfully, and the offspring of that mating also mated…
Chapter 19 Solutions
Biology
Ch. 19.1 - Analysis of human chromosome 2 revealed that it...Ch. 19.1 - Origin of a Killer Analysis of nucleotide...Ch. 19.1 - explain why scientific names are necessary?Ch. 19.1 - describe the type of similarities that...Ch. 19.1 - Prob. 3CYLCh. 19.2 - Prob. 1TCCh. 19.2 - Prob. 1CYLCh. 19.2 - explain how scientists discovered that prokaryotes...Ch. 19.3 - Prob. 1HYEWCh. 19.3 - Prob. 1CYL
Ch. 19.3 - Prob. 2CYLCh. 19.4 - Prob. 1CYLCh. 19.4 - Prob. 2CYLCh. 19.4 - Prob. 1CTCh. 19 - Prob. 1MCCh. 19 - To be informative for reconstructing the phylogeny...Ch. 19 - Prob. 3MCCh. 19 - In modern systematics, classifications are...Ch. 19 - Which of the following includes all the domains...Ch. 19 - Prob. 1FIBCh. 19 - Prob. 2FIBCh. 19 - In Linnaean classification, the eight major...Ch. 19 - Systematists determine the evolutionary...Ch. 19 - Prob. 5FIBCh. 19 - The number of named species is about ________, but...Ch. 19 - What contributions did Linnaeus and Darwin make to...Ch. 19 - Prob. 2RQCh. 19 - What techniques might you use to determine whether...Ch. 19 - Only a small fraction of the total number of...Ch. 19 - In England, daddy longlegs refers to a long-legged...Ch. 19 - Why are species designations of asexually...Ch. 19 - Applying the Concepts The pressures created by...Ch. 19 - Applying the Concepts 2. During major floods, only...Ch. 19 - Consider the following list of groups: (1)...
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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
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- What is phyletic speciation? What is divergent speciation?arrow_forwardBased on the information from the following table and the provided phylogenetic tree, what kind of species classification is shown? A B C D E F G H 1 J K L M N O Form of Male Genitalia 1 1 L L L L L L L L L L L L L r T Pits) or Tubercles E P P T T T T T P P P P P Р P P O Phenetic Species Concept O Blological Species Concept O Phylogenetic Species Concept O Sympatric Species Concept Blayple (OUTGROUP) beaver Dan, AZ -Twentynine Paime, CA -Harkavilla, UT D-Chilchinbio, NM -Vermilion Cas. AZ 64 -F-Mone Lake, CA -G-Coral Pink Danes, UT H-Pyramid Lake, N -Crescent Dunes, MV Meno Lake CA -K-Olancha CA -Olancha, CA --Winnemucca, NV -El Mirage, CA Lo-Dumont Dunes, CA Form of dorsal ridges M₁ M₁ FFFFFFFFFF M Ma M₂ M₂arrow_forwardWhat causes sexual dimorphism? Give some examples of sexually dimorphic species, and why you think that form of sexual dimorphism arose.arrow_forward
- How do reproductive isolating mechanisms lead to speciation?arrow_forward(a) Which species concept(s) could you apply to bothasexual and sexual species? (b) Which would be mostuseful for identifying species in the field? Explain.arrow_forwardFor the species: Polyommatus eleniae Use this link : https://www.iucnredlist.org/species/173273/6983441 to answer the following What is known about the genus? Who discovered this species? When and where was your species first discovered? What makes your species a species (what is different about them, which character etc.)? What do we know about its distribution and habitat needs?arrow_forward
- Identify each of the following groups of species as a monophyletic group (clade), a paraphyletic group, or a polyphyletic group. a) Brown bear, Polar bear, D, G b) Sun bear, Sloth bear, Spectacled bear c) Sun bear, Asian black bear, American black bear, E, Farrow_forwardWhich of the following correctly describes the life cycle of Cnidaria with both a polyp and medusa phase? Group of choices: polyp does sexual reproduction; medusa does asexual reproduction polyp does asexual reproduction; medusa does sexual reproduction polyp is haploid and medusa is diploid polyp is diploid and medusa is haploidarrow_forwardMost eukaryotic organisms use sexual reproduction as their primary means of perpetuating their species. Gametes are formed via meiosis. However, some species primarily reproduce via asexual means. Reproduction is accomplished via mitosis. Aspen trees most commonly reproduce by such asexual methods of cloning.What are the advantages and disadvantages of reproduction by asexual means? Why do some species reproduce in this manner? Why don't all species?arrow_forward
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