Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 23, Problem 4RQ
What event is thought to have contributed to the evolution of eukaryotes?
- global warming
- glaciation
- volcanic activity
- oxygenation of the atmosphere
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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
Which of the following occurred first in the history of life on earth?
Colonization of land
Evolution of photosynthesis
Origin of unicellular eukaryotes
Origin of multicellular eukaryotes
Origin of prokaryotes
Which of the following is thought to be a necessary precursor for Eukaryotes to evolve?
Organic matter for Eukaryotes to "eat"
The atmosphere containing oxygen
Endosymbiosis of aerobically respiring bacteria
All of these are thought to be necessary
Chapter 23 Solutions
Biology 2e
Ch. 23 - Figure 23.5 What evidence is there that...Ch. 23 - Figure 23.25 Which of the following statements...Ch. 23 - Figure 23.28 Which of the following statements...Ch. 23 - What event is thought to have contributed to the...Ch. 23 - Which characteristic is shared by prokaryotes and...Ch. 23 - Mitochondria most likely evolved by ___________ ....Ch. 23 - Which of these protists is believed to have...Ch. 23 - In 2016, scientists published the genome of...Ch. 23 - Which of the following observations about a...Ch. 23 - Protists that have a pellicle are surrounded by...
Ch. 23 - Piotists with the capabilities to perform...Ch. 23 - Which of these locomotor organs would likely be...Ch. 23 - Alternation of generations describes which of the...Ch. 23 - The amoeba E. histolytica is a pathogen that forms...Ch. 23 - Which protist group exhibits mitochondrial...Ch. 23 - Conjugation between two Paramecia produces total...Ch. 23 - What is the function of the raphe in diatoms?...Ch. 23 - What genus of piotists appears to contradict the...Ch. 23 - A marine biologist analyzing water samples notices...Ch. 23 - An example of carbon fixation is photosynthesis...Ch. 23 - Which parasitic protist evades the host immune...Ch. 23 - Which of the following is not a way that piotists...Ch. 23 - Describe the hypothesized steps in the origin of...Ch. 23 - Some aspects of eukaryotes are more similar to...Ch. 23 - Explain in your own words why sexual reproduction...Ch. 23 - Giaidia iamblia is a cyst-forming protist parasite...Ch. 23 - Explain how the definition of protists ensures...Ch. 23 - The chllorophyte (green algae) genera Ulva and...Ch. 23 - Why might a light-sensing eyespot be ineffective...Ch. 23 - Opisthokonta includes animals and fungi, as well...Ch. 23 - Describe two ways in which paramecium differs from...Ch. 23 - How does killing Anopheles mosquitoes affect the...Ch. 23 - Without treatment, why dees African sleeping...Ch. 23 - Describe how increasing stress to the ocean would...
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- Place the following events in the order in which they are thought to have occurred in early evolution of life. the ability to produce proteins from genetic material the ability to use O2 as an electron acceptor for producing cellular energy the formation of heritable information (RNA) the ability to use light energy to fix CO2arrow_forwardDuring which geologic eon was the Earth first colonized by living organisms? the Phanerozoic Eon the Proterozoic Eon the Archaean Eon the Hadean Eon none of the abovearrow_forwardWhich of the following scientists claimed that all cells (from animals, fungi, plants, protists, and bacteria) share a single common ancestor, which first originated on Earth through abiogenesis? Matthias Schleiden Charles Darwin Louis Pasteur Robert Hooke Theodor Schwannarrow_forward
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