Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 12PIAT
Are all the theropod dinosaurs extinct?
a. Yes, all the theropod dinosaurs died out 66 million years ago.
b. No, theropods are a monophyletic group that includes birds.
c. No, theropods are a paraphyletic group that includes birds.
d. No, theropods are a polyphyletic group that includes birds.
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Use the scenario to answer the question.
Scientists have found one new fossil that is similar to Archaeopteryx. It is only the second fossil of its kind. It shows an animal
that had a long-feathered tail and small teeth, like non-avian dinosaurs. But the animal also had flight feathers and wings, like
modern birds. The fossil also shows a fused clavicle bone, which confirms the relationship between birds and dinosaurs
because they are the only two groups with this characteristic,
What is true about this scenario?
It shows evidence of evolution.
It shows evidence of causation.
It shows evidence of climate change.
It shows evidence of widespread expression.
Reptiles faced a number of challenges as they moved farther away from sources of water. (Similarly, to amphibians).A.) what were some of the challenges reptiles faced?B.) and how did they overcome those challenges? (Evolutionary, adaptation...)
Birds evolved from a group of bipedal dinosaurs known as theropods.
True or false?
Chapter 25 Solutions
Biological Science (6th Edition)
Ch. 25 - 1. Choose the best definition of a fossil.
a. any...Ch. 25 - 2. CAUTION True or false? The absence of a trait...Ch. 25 - Which of the following best characterize an...Ch. 25 - Which of the following is an example of homoplasy?...Ch. 25 - 5. Why is parsimony a useful tool for assessing...Ch. 25 - Prob. 6TYUCh. 25 - Fossilization continues even today. If you wanted...Ch. 25 - Prob. 8TYUCh. 25 - 9. MODEL Use the data matrix below to draft a...Ch. 25 - Prob. 10TYPSS
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