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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Chapter 25 Solutions
Life: The Science of Biology
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- How do eukaryotic cells differ from bacteria and archaeons, and how do these differences explain the roles that eukaryotes play in modern ecosystems?arrow_forwardWhere did eukaryotes come from?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
- Why were cyanobacteria so important in the evolution of life on Earth and why are microorganisms important to humans?arrow_forwardHow many species of Bacteria and Archaea have been named?How many likely exist?arrow_forwardWhat are the lineages of the tree of life that we divide into prokaryotes vs. eukaryotes and how are they similar/different?arrow_forward
- What is one of the species of Doamin Archea? What was is it determined to be a member of the Domain Archaea rather than the Domain Bacteria?arrow_forwardWhy are archaebacteria called living fossils?arrow_forwardHow did the evolution of oxygen-releasing photosynthesis in cyanobacteria increase the likelihood that mitochondria would one day evolve?arrow_forward
- How might a sudden and dramatic change in your diet affect the diversity of prokaryotic species that live in your digestive tract?arrow_forwardBased 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_forwardWhy is there a debate as to whether archaea is classified as prokaryotic or eukaryoticarrow_forward
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