BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 18, Problem 11SA
A rise in oxygen in Earth’s air and seas set the stage for the
evolution of _______.
| a. aerobic respiration | c. photosynthesis |
| b. fermentation | d. sexual reproduction |
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Chapter 18 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 18 - An abundance of___________ in Earths early...Ch. 18 - The first interval of Earths existence is called...Ch. 18 - The prevalence of ironsulfur cofactors in...Ch. 18 - Miller and Urey created a reaction chamber that...Ch. 18 - RNA in ribosome catalyzes formation of peptide...Ch. 18 - By one hypothesis, clay________. a. facilitated...Ch. 18 - Photosynthesis carried out by one group of...Ch. 18 - Mitochondria are most closely related to...Ch. 18 - The presence of ozone in the upper atmosphere...Ch. 18 - A ribozyme consists of ___________. a. clay c. DNA...
Ch. 18 - A rise in oxygen in Earths air and seas set the...Ch. 18 - Which of the following was not present by the end...Ch. 18 - The first chloroplasts evolved from ___________....Ch. 18 - During the Precambrian, _______. a. atmospheric...Ch. 18 - Arrange these events in order of occurrence, with...Ch. 18 - Researchers looking for fossils of the earliest...Ch. 18 - Rickettsia bacteria always live as parasites...
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- The first forms of life on Earth were ________. a. plants b. microorganisms c. birds d. dinosaursarrow_forwardPhotosynthesis carried out by one group of ________ resulted in Earths first increase in atmospheric oxygen levels. a. archaea c. protists b. bacteria d. algaearrow_forwardThe first forms of life on Earth were thought to be_________. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forward
- Chloroplasts of green algae evolved from_____ . a. cyanobacteria b. archaea c. red algaearrow_forwardWhen energy is transferred from one organism to another, some energy is lost to the environment due primarily to ____ ? A.)reproduction B.)growth C.)the release of heat D.)the transmission of DNAarrow_forwardThe endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of mitochondria and chloroplasts in eukaryotes.c. evolutionary relationship between animals, plants, and fungi.d. method of reproduction in protists.arrow_forward
- The fossil record shows how ________________ a. dead organisms were buried b. organisms have changed over time and when organisms lived on Earth c. parents of the offsprings d. evolution occurredarrow_forwardexplaination this in 150 words each question A. What is the PROTEROZOIC LIFE? B. Discuss the Great Oxygenation Event. C. Discuss the CAMBRIAN EXPLOSION OF LIFE.arrow_forwardScientist have determined that the early Earth had no free oxygen anywhere. Briefly explain what evidence in the rock layers that scientists found to prove when the early conditions on earth had free oxygen in the atmosphere.arrow_forward
- The first forms of life on Earth were thought to be_____. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forwardWhich evolutionary pattern is represented by the similarities between these two organisms that live on separate continents? a.) coevolution b.) convergent evolution c.) directional evolution d.) divergent evolutionarrow_forwardAlmost all of the oxygen gas in today’s atmosphere ispresent as a result ofa. outgassing from volcanoes.b. aerobic respiration.c. endosymbiosis.d. photosynthesis.arrow_forward
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