BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 26.1, Problem 1CC
Summary Introduction
To determine: The oldest rock layer in the given photo.
Introduction: Sedimentary rocks are formed from particles of older rocks broken apart by water or wind. The particles may be in the form of gravel, sand or mud. These particles subsequently settle and bury living and dead organisms at the bottom of rivers, lake, and oceans. Eventually, the sediments at the bottom of the pile become rock. The lower layers are usually older than the upper layers in a sequence of layered rock.
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Chapter 26 Solutions
BIOLOGY
Ch. 26.1 - Prob. 1CCCh. 26.1 - Prob. 2CCCh. 26.2 - Prob. 1CSCh. 26.2 - Prob. 1CCCh. 26.2 - Prob. 2CSCh. 26.3 - What are the defining features of primates?Ch. 26.3 - Core Skill: Modeling The goal of this modeling...Ch. 26 - Prob. 1TYCh. 26 - Prob. 2TYCh. 26 - Prob. 3TY
Ch. 26 - The endosymbiosis hypothesis explaining the...Ch. 26 - Prob. 5TYCh. 26 - Which of the following explanations of...Ch. 26 - Prob. 7TYCh. 26 - Prob. 8TYCh. 26 - Prob. 9TYCh. 26 - Which of the following statements regarding modern...Ch. 26 - Prob. 1CQCh. 26 - Prob. 2CQCh. 26 - Core Concept: Evolution Describe two examples in...Ch. 26 - Discuss the factors that have contributed to the...Ch. 26 - Discuss how the human body has changed since the...
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- True or false? Wrinkly textures in rock that formed from ancient biofilms living in marine sediments are considered trace fossils.arrow_forwardRadiometric dating measures the decay of radioactive isotopes present in layers where fossils are found. True Falsearrow_forwardPart 1. Stratigraphic Dating: A Café Scene Relative dating methods establish the date of something as older or younger than something else rather than anchoring its age to an absolute, scaled timeline, as in absolute dating. So, we determine the sequence of at least two things (two events, two deposits, etc.) and establish what happened first, what happened next, and so on. In archaeology, relative dating relies on stratigraphy—what material is located above or below something else. The Law of Superposition tells us that material positioned underneath something else is usually older and material overlying a deposit is younger than the deposit, unless the layers have been disturbed. The photos that you will be shown depict a collection of items on a table: a cup, saucer, newspaper, and tickets. Imagine that these items are part of a single context such as a layer in an excavation and you want to determine whether they were deposited all at once as a single event or one after the other…arrow_forward
- Given the life-style we live today, what pre-historic period gives us the ability to heat our homes, run our cars and have a comfortable life Group of answer choices Jurassic neogene carboniferous Cambrianarrow_forwardWhich of these geologic time periods have been defined by a major extinction event? Select all that apply. Permian Jurassic Quaternary Cretaceous Cambrianarrow_forwardComparison of carbon -14 and nitrogen -14 in sample Age of fossils in yearsarrow_forward
- The field of geology helped to set the stage for the Theory of Evolution through an understanding that life on Earth is millions of years old erosion can reveal ancient strata of sediment fossils of ancient life can be found in these ancient strata of rock all of the above OO OOarrow_forwardImagine you were asked to excavate fossils from deposits near the top of the Grand Canyon and near the bottom . Predict any pattern you would expect to find in the fossilsarrow_forwardWhich statement is true? Recent remains of plants or animals on topsoil are fossils. Imprints of leaves or footprints in sedimentary rock are fossils. Insects preserved in hardened tree sap are not fossils. Petrified skeletal bones from an ancient mammal are not fossilsarrow_forward
- Fact or theory? Organisms that look similar have been observed to have differences when preserved in rocks of different ages.arrow_forwardYour history teacher asked you to show something that can give idea of the information about the primative earth. Is presenting a sedimentary rock satisfy this requirement given by your teacher? Why or why not?arrow_forwardThe largest and most deadly of all Mass Extinctions in the history of Earth came at the end of the Period, when only 5% of the existing species survived. Nobody knows exactly what caused this event, so it remains a mystery to this day. Quaternary Devonian Ordovician Permianarrow_forward
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