Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
7th Edition
ISBN: 9780135276556
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 27, Problem 5TYU
Summary Introduction
To review:
The logic behind the claim that states the nuclear envelope is a synapomorphy that defines eukaryotes as a monophylectic group.
Introduction:
The synapomorphy is the property of the ancestral species, which is passed to their evolutionary descendants in more or less altered form. One such synapomorphy in the eukaryotes is the nuclear envelope.
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View Available Hint(s)for Part A
Euryarcheotes are found in the Archaea
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Chapter 27 Solutions
Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
Ch. 27 - Why are protists considered paraphyletic? a. They...Ch. 27 - 2. The most important primary producers in marine...Ch. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - 8. The text claims that the evolutionary history...Ch. 27 - Prob. 9TYPSSCh. 27 - Prob. 10TYPSSCh. 27 - Does a slime mold “know” where it’s going?
When...Ch. 27 - Prob. 12PIAT
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- Outline the basics of eukaryotic taxonomy.arrow_forward1. How do members of Eukarya differ from the prokaryotic groups of Chp 26 (your text lists 4 major differences)? Do these differences represent a greater success and superiority of eukaryotic over prokaryotic cells? 2. Examine Figure 27.1 from your text. How does this phylogenetic tree show that "Protists" are paraphyletic? Hint: think about what the term "paraphyletic" means in your answer.. 3. Describe at least two impacts that protists have on humans and two ecological importance's protists have on the planet. 4. What is direct sequencing and how has it been used to discover new lineages in the eukaryotic group? Be specific! 5. What is the endosymbiosis theory and what are thought to have been the three main steps in the theory? What are thought to have been the two main steps in the nucleus formation? • Previous Next MacBook Pro G Search or type URL 23 %24 &arrow_forwardDescribe a distinctive structural characteristic for each of seveneukaryotic supergroupsarrow_forward
- What are two major diseases caused by protists (use common names)? -(HINT: this disease was on The Oregon Trail video game) - -(HINT: disease carried around by mosquitos) -arrow_forwardExplain how the definition of protists ensures that the kingdom Protista includes a wide diversity of cellular structures. Provide an example of two different structures that perform the same function for their respective protist.arrow_forwardVolvox carteri, an volvocine alga, has approximately 2000 somatic cells and only 16 reproductive or germ line cells. The observation that multicellular individuals, like Volvox, have a much smaller subset of germ line cells compared to somatic cells appears to be general rule. Which of the following is the best evolutionary explanation for why this is the case? A) Organisms can biologically only contain a small number of germ line cells as they are always larger than somatic cells. B) Multicellular individuals with a germ line vs. somatic cell line differentiation only evolved a single time, thus all members of this lineage share the same scheme of more soma cells with a much smaller subset of germ line cells. C) Having a smaller subset of reproductive cells helps reduce the likelihood of cheating from evolving, which in turns prevents the collapse of the multicellular individual system. D) None of the above.arrow_forward
- DNA sequence data for a diplomonad, a euglenid, a plant, and an unidentified protist suggest that the unidentified species is most closely related to the diplomonad. Further studies reveal that the unknown species has fully functional mitochondria. Based on these data, at what point on the phylogenetic tree in Figure 1 did the mystery protist’s lineage probably diverge from other eukaryote lineages? Explain.arrow_forwardDescribe in detail how organisms of the Domain Eukarya are classified into four Kingdoms. What are the four Eukaryotic Kingdoms and what criteria are used to sort Eukaryotic organisms into each Kingdom.arrow_forwardmake a drawing of a phylogenetic tree that contains all 3 domains of life. The tree should include at least three different animals, two plants, chemoheterotrophic bacteria, photoautotrophic bacteria, chemoheterotrophic archaea, thermophilic archaea and fungi. Identify both primary endosymbiosis events on the tree and draw a line to connect it to the organism that would become the future organelle.arrow_forward
- Make a comparison between a prokaryotic cell and a eukaryotic cell as to: 1. genetic material 2. size 3. nucleus 4. cell wall 5. cell division 6. sexual reproduction 7. cytoskeleton 8. mesosome 9. ribosomes 10. membrane-bound organelles 11. extrachromosomal plasmid 12. duration of cell cyclearrow_forward8) The diagram below represents a yeast cell that is in the process of budding, a form of asexual reproduction. Nucleus -Bud "Nucleus Which of the following statements describes the outcome of this process? A) The two cells that result will each contain half the species number of chromosomes. B) The two cells that result will have identical DNA. C) The bud will develop into a zygote. D) The bud will start to divide by the process of meiotic cell division.arrow_forwardWhat is endosymbiosis and why is it considered to be the source of eukaryotic diversity? Why are we confident this only happened once? What is primary and secondary endosymbiosis? Was there another endosymbiotic event that led to a third lineage? What group of organisms possesses a structure that might suggest this possibility and what is the structure? Why is the structure in question different from the ancestor of other plastids?arrow_forward
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