Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 13, Problem 8RQ
What event is thought to have contributed to the evolution of eukaryotes?
a. global warming
b. glaciation
c. volcanic activity
d. oxygenation of the atmosphere
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Which phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes? a. tree of life b. web of life c. ring of life d. network model
what simple organic molecules were likely the precursors of life?
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c. oxygen and carbon
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Which statement best explains why the third domain, Archea, was added to the original two domains of Bacteria and Eukarya?
A. scientist discovered that eukaryotes are unicellular
B. scientist discovered that eukaryotes have cell walls
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Chapter 13 Solutions
Concepts of Biology
Ch. 13 - Figure 13.6 Which of the following statements is...Ch. 13 - The first forms of life on Earth were thought to...Ch. 13 - The first organisms that oxygenated the atmosphere...Ch. 13 - Which of the following consist of prokaryotic...Ch. 13 - Prokaryotes stain as Gram-positive or...Ch. 13 - Prokaryotes that obtain their energy from chemical...Ch. 13 - Bioremediation includes _____. a. the use of...Ch. 13 - What event is thought to have contributed to the...Ch. 13 - Mitochondria most likely evolved from_______. a. a...Ch. 13 - Protists with the capabilities to absorb nutrients...
Ch. 13 - Which parasitic protist evades the host immune...Ch. 13 - Which polysaccharide is usually found in the cell...Ch. 13 - What term describes the close association of a...Ch. 13 - Explain the reason why the imprudent and excessive...Ch. 13 - Your friend believes that prokaryotes are always...Ch. 13 - Describe the hypothesized steps in the origin of...Ch. 13 - How does killing Anopheles mosquitoes affect the...Ch. 13 - Without treatment, why does African sleeping...Ch. 13 - Why can superficial mycoses in humans lead to...
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- Which statement about spontaneous generation is false? A. It addresses the formation of living cells from previously nonliving material. B. This was a common belief for during the Middle Ages. C. Pasteur demonstrated that it does not occur under normal laboratory conditions. D. It occurs every time a new species evolves from a preexisting species. E. It apparently occurred at least once – when life on Earth began.arrow_forwardWhich statement about the genomes of prokaryotes is not correct? A. Prokaryotic chromosomes are sometimes called plasmids B. Prokaryotic genomes are haploid throughout the life of the cell C. The prokaryotic chromosome is found the nucleoid region D. Prokaryotic genomes are composed of circular DNAarrow_forwardTo which taxonomic group do cyanobacteria belong?a. Domain Archaea c. Domain Bacteriab. Phylum Actinobacteria d. Phylum Fusobacteriaarrow_forward
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