Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 22.2, Problem 2CC
WHAT IF? Ø If you discovered a fossil of an extinct mam- mal that lived high in the Andes, would you predict that it would more closely resemble present-day mammals from South American jungles or present-day mammals that live high in Asian mountains? Explain.
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What evidence shows that the most recent common ancestor of chimpanzees and humans was much more arboreal than modern humans are? We spoke of paleoenvironmental processes that changed the ecological environmental conditions in Africa somewhere around 7 million years in Africa: which are they? How would have these processes might have selected for a less arboreal lifestyle in the human lineage? Why did the same changes not evolve in the chimpanzee lineage?
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Chapter 22 Solutions
Campbell Biology (10th Edition)
Ch. 22.1 - How did Hutton's and Lyell's ideas influence...Ch. 22.1 - MAKE CONNECTIONS Scientific hypotheses must be...Ch. 22.2 - How does the concept of descent with modification...Ch. 22.2 - WHAT IF? If you discovered a fossil of an extinct...Ch. 22.2 - Prob. 3CCCh. 22.3 - Explain how the following Statement is inaccurate:...Ch. 22.3 - How does evolution account for (a) the similar...Ch. 22.3 - Prob. 3CCCh. 22 - Why was the age of Barth important for Darwin's...Ch. 22 - Describe how overreproduction and heritable...
Ch. 22 - Summarize the different lines of evidence...Ch. 22 - Level 1: Knowledge/Comprehension 1. Which of the...Ch. 22 - Which of the following observations helped Darwin...Ch. 22 - Prob. 3TYUCh. 22 - Prob. 4TYUCh. 22 - DNA sequences in manv human genes are very similar...Ch. 22 - EVOLUTION CONNECTION Explain why anatomical and...Ch. 22 - SCIENTIFIC INQUIRY DRAW IT Mosquitoes resistant...Ch. 22 - WRITE ABOUT A THEME: INTERACTIONS Write a Short...Ch. 22 - SYNTHESIZE YOUR KNOWLEDGE This honeypot ant (genus...
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- Introduce wooly mammoths based on the tree. Why dont we see woolly mammoths today?arrow_forwardBipedalism BA Option Possible Hypotheses: The data for the Laetoli individuals will be exactly between modern chimpanzees and modern human data. The data for the Laetoli individuals will be more similar to modern chimpanzee data. The data for the Laetoli individuals will be more similar to modern human data.arrow_forward. WHAT IF? Imagine that we could replay the history oflife. Is it possible that a group of vertebrates that colonized land could have arisen from aquatic gnathostomesother than the lobe-fins? Explain.arrow_forward
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- Explain the difference between generalized and specialized characteristics. What are examples of each in terms of the adaptive potential? Define the term “adaptive radiation” and explain why it is important to the principle of evolution. Why was adaptive radiation especially important to mammals’ eventual rapid evolutionary success and diversification? What are some of the different groups of mammals?arrow_forwardGive typed explanationarrow_forwardn. 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 widespread expression. It shows evidence of climate change. It shows evidence of causation.arrow_forward
- Ardi (Ardipithecus ramidus) lived 4.4 million years ago, close to the time that our lineage diverged from chimpanzees suggesting that Ardi might be more similar to the last common ancestor than extant chimpanzees or humans. Ardi has small teeth like ours, indicative of a generalized diet. So small teeth are older than larger teeth of extant chimpanzees! Ardi also had limbs shaped more like ours than chimpanzees’. Ardi’s skull also shares other features with ours – for example, it is relatively narrow. The hypothesis we tested assumed that the hominin ancestor resembled chimpanzees, and the assumption was quite common among paleoanthropologists until recently (Lovejoy, 2009). Considering both these data about Ardi and the data that you took, revise your hypothesis. (1 point) Explain chimpanzee skull and/or skeletal development, in terms of regulatory genes (specifically, timing), in light of your new hypothesis. (0.5 points) Explain Homo sapiens skull and/or skeletal…arrow_forwardHow would you apply this in a Lamarckian explanation? Tiger Moths (Bertholdia trigona) produce high pitched ultrasonic clicking (at a rate of 4500 clicks/sec) when they hear the echolocation calls of bats (bats eat moths). As a result, the bat's sonar is jammed and the Tiger Moth escapes without being caught, killed, and eaten. Please use your knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths. Please use your Knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths.arrow_forwardA вс D E F G scales fur/ scales spikes horns horns claws feathers hair a) Which trait(s) did the most recent common ancestor of dragons A and B have? [ [ Select ] b) Which trait(s) appear to be the result of convergent evolution? [ Select ] c) Which trait(s) does dragon D have? [Select ] d) Which taxa is most closely related to dragon B? [ Select ] f) True or false? The clade formed by dragons D, E, and their most recent common ancestor is monophyletic [ Select ] e) Which trait(s) did the most recent common ancestor of dragon species A and E have? [ Select ]arrow_forward
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