Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 20, Problem 15RQ
Which phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes?
- tree of life
- web of life
- ring of life
- network model
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Draw a simpler version of the phylogenetic tree that just depicts the four supergroups of eukaryotes after viewing the image. Now imagine and sketch the tree as if the unikonts were the first eukaryotes to diverge from the rest of the eukaryotes.
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Compare and contrast the evolutionary theory and creationism theory on the origin of life molecules, the origin of prokaryotes, and the origin of eukaryotes.
Chapter 20 Solutions
Biology 2e
Ch. 20 - Figure 20.6 At what levels are cats and dogs...Ch. 20 - Figure 20.10 Which animals in this figure belong...Ch. 20 - Figure 20.11 What is the largest clade in this...Ch. 20 - What is used to determine phylogeny? mutations DNA...Ch. 20 - What do scientists in the field of systematics...Ch. 20 - Which statement about the taxonomic classification...Ch. 20 - On a phylogenetic tree, which term refers to...Ch. 20 - Which statement about analogies is correct? They...Ch. 20 - What do scientists use to apply cladistics?...Ch. 20 - What is true about organisms that are a part of...
Ch. 20 - Why do scientists apply the concept of maximum...Ch. 20 - The transfer of genes by a mechanism not involving...Ch. 20 - Particles that transfer genetic material from one...Ch. 20 - What does the trunk of the classic phylogenetic...Ch. 20 - Which phylogenetic model proposes that all three...Ch. 20 - How does a phylogenetic tree relate to the passing...Ch. 20 - Some organisms that appear very closely related on...Ch. 20 - List the different levels of the taxonomic...Ch. 20 - Dolphins and fish have similar body shapes. Is...Ch. 20 - Why is it so important for scientists to...Ch. 20 - Describe maximum parsimony.Ch. 20 - Compare three different ways that eukaryotic cells...Ch. 20 - Describe how aphids acquired the ability to change...
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- Draw a simpler version of the phylogenetic tree that just depicts the four supergroups of eukaryotes after viewing the image. Now imagine the tree as if the unikonts were the first eukaryotes to diverge from the rest of the eukaryotes.arrow_forwardDNA sequence data supports the organization of eukaryotes into five ______, which are lineages of eukaryotes that may also include multicellular descendants (plants, animals, and fungi). Multiple choice question. phyla families supergroups domainsarrow_forwardWhat are the eons in which the following events occur? Origin of Earth. Oxygen appeared in the atmosphere Prokaryotic cells Single cell eukaryotes Multicellular eukaryotes Animals Plantsarrow_forward
- Which of the following provide evidence for an endosymbiotic origin of mitochondria and chloroplasts? Choose all the correct statements. Group of answer choices They are about the same size as free-living cyanobacteria and alpha proteobacteria. The nuclear membrane of eukaryotes is similar to the archaean cell membrane. Organelle genes are often more similar to bacterial genes than those of their eukaryotic host. These organelles have their own circular genomic DNA.arrow_forwardWhat event is thought to have contributed to the evolution of eukaryotes? a. global warming b. glaciation c. volcanic activity d. oxygenation of the atmospherearrow_forwardSuppose we find an organism living on a dead log in the mangrove forest of Everglades National Park. This organism is prokaryotic and does not eat. It is made up of only one cell. What domain/kingdom is it probably in? Group of answer choices Animalia Plantae Protista Fungi Eubacteriaarrow_forward
- What is a genus? Group of answer choices A taxonomic ranking dividing members into plants, animals, fungus, bacteria, and archaea. A taxonomic classification seperating an organism that is completely unique from every other organism. A taxonomic ranking where members share very close similarities. A taxonomic classification mainly based on prokaryotic or eukaryotic cell structure. A taxonomic classification where members are remotely similar.arrow_forwardWhat eukaryotic kingdom contains single-celled organisms?a. Plantaeb. Fungic. Archaead. Animaliaarrow_forwardWHICH ORGANISM CAN MOST LIKELY BE CLASSIFIED IN THE DOMAIN BACTERIA? Required to answer. Multiple choice. A predatory organism that depends on hunting plant eaters for food a multicellular organism that reproduces via sores and gets food from a dead log a photosynthetic organism that undergoes sexual reproduction and produces seeds in a cone A unicellular organism that has a simple structure and is commonly found in the intestinesarrow_forward
- Draw a simple cladogram illustrating the relationships among the following: Common ancestor of all organisms, domain Eukarya, domain Bacteria, domain Archaea. To which domain do the organisms informally known as protists belong? To which domain do you belong?arrow_forwardHere is the question: What was the likely source of the raw material incorporated into the first life forms? I believe it is carbon, but I don't know why it is carbon. What I mean is, why is carbon considered the thing that makes something alive? Why are eukaryotes and prokaryotes simply considered alive just because they have carbon. Would that mean that carbon is alive because carbon has carbon? I would appreciate an anwser because I'm really trying to understand everything I run across. I love educating myself and I'm on a quest for knowledge. Thanks guys!arrow_forwardWhat do the multiple branching points at the root of the eukaryotic phylogenetic tree indicate about the evolution of eukaryotes? A. that unikonts are derived from the SAR clade B. that Archaeplastids were the first eukaryotes C. that fungi are more closely related to plants than animals D. that eukaryotes are all descended from a common ancestorarrow_forward
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