BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 18, Problem 12SA
Which of the following was not present by the end of
Precambrian?
| a. archaea | c. |
| b. bacteria | d. fish |
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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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- In which type of rock are you most likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of sedimented calcium carbonate c. slate, a volcanically melted and cooled shale d. granite, which forms by crystallization of magma cooling below Earth’s surfacearrow_forwardwhat key trait of life developed with the emergence of multicellular organism, the third threshold in the evolution of life? a. metabolism b. adaptation c. homeostasis d. reproductionarrow_forwardwhat is a mold? A. the imprints from an organism can be a shell or the skin of an animal B. Molds fill in with sediment that hardens into rock. C. naturally preserved remains D. Organisms preserved in materials such as amberarrow_forward
- What is the term for bits of rock and dirt? O A. Mesozoic O B. Half-life O c. Sediment O D. Radiometricarrow_forwardScientists find an artifact next to an index fossil. What can they conclude about the unknown age of the artifact? a The artifact is older than the index fossil. b The artifact is younger than the index fossil. c The artifact is approximately the same age as the index fossil. d The artifact's age is not related to that of the index fossil.arrow_forwardDuring what era did pangs begin to break up? A. Cretaceous B. Triassicarrow_forward
- In which era did humans first appear on Earth? O A. Paleozoic O B. Mesozoic C. Precambrian O D. Cenozoicarrow_forwardThe Cambrian Explosion occurred approximately 542 million years ago. During the Cambrian, what ‘exploded’? a. The diversity of species on Earth, including many major animal phyla that exist today b. The Yucatan Peninsula, which was hit by an asteroid c. The quantity of oxygen in the atmosphere due to the expansion of coniferous forests d. Numerous volcanoes worldwide, leading to the fourth mass extinctionarrow_forwardAccording to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, what kinds of tool artifacts were found in the cave near Denisovan specimens? A.Lithic cores B.Levallois cores C.Oldowan Choppers D.Both A and B E.Both A and Carrow_forward
- Which mechanism of fossil formation created a replica of an organism's original form? a natural cast b amber-preserved c permineralization d trace fossilarrow_forwardwhere on the earth did life mostly likely first emerge, where all the ingredients and conditions for life existed? a. volcanic islands b. deep oceanic vents c. tidal pools d. tropical rainforestarrow_forwardAccording to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, where are the known areas that Denisovans lived? A.Central and Southeast Asia B.Mongolia C.China D.All of the abovearrow_forward
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