Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 25.1, Problem 3R
Summary Introduction
To review:
The evolution of eukaryotes through evolutionary contributions from both prokaryotes archaea and bacteria.
Introduction:
Prokaryotes and eukaryotes are the two main life forms that are found. Scientists believe that eukaryotes evolved from prokaryotes, but its exact mechanism was not clear. Prokaryotes are divided into Bacteria and Archaea. These are unicellular organisms and simple forms of life. Eukaryotes are a complex form of life and are multicellular organisms.
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What is the evolutionary relationship between eukaryotic cells and organisms with prokaryotic cells and their descendants?
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Life: The Science of Biology
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- Did eukaryotes develop from prokaryotes?arrow_forwardWhy are prokaryotes so abundant and have such high diversity?arrow_forwardWhy were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence showed this domain to form a distinct branch on the tree of life?arrow_forward
- How do eukaryotic cells differ from bacteria and archaeons, and how do these differences explain the roles that eukaryotes play in modern ecosystems?arrow_forwardWhich of the following characters evolved last (i.e., most recently)? A) Heredity B) Photosynthesis C) Multicellularity D) Eukaryotic cells E) Prokaryotic cellsarrow_forwardwhere is the dna of prokaryotes found?arrow_forward
- Based on the accompanying evolutionary tree, which prokaryotic domain gave rise to the domain Eukarya? Which kingdom in domain Eukarya gave rise to plants, animals, and fungi?arrow_forwardThe membrane structure that eventually evolved into the double nuclear membrane of the eukaryotes first appears in the: A) Chemical evolution, B) Prokaryotes, C) Eukaryotes, D) the protocell, E) Plants.arrow_forwardWhy are archaebacteria called living fossils?arrow_forward
- Why were cyanobacteria so important in the evolution of life on Earth and why are microorganisms important to humans?arrow_forwardGive explanation Which of the following statements is TRUE based on the phylogenetic tree shown? a) Bacteria and archaea are equally related to to eukarya b) Plants and ciliates are more closely related than plants and animals c) Green sulfur bacterial are more closely related to archaea than the Thermotogales d) Methanosarcina and Haloarchaea are equally related to Methanococcus e) Flavobacteria are the last common ancestor between bacteria and eukaryaarrow_forwarda) Describe some characteristics and differences between prokaryotic and eukaryotic cells.b) How do the three domains of life differ from one another?c) Two of the organelles in eukaryotes, the mitochondrion and the chloroplast are believed to haveoriginated through a process of symbiosis. Discuss some of the theories of the origins ofmitochondria and chloroplastsarrow_forward
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