BIOLOGY 12E CONNECT ACCESS CARD
12th Edition
ISBN: 9781264938513
Author: Raven
Publisher: MCG
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Textbook Question
Chapter 34, Problem 3S
In what respect is the evolutionary diversification of hominids similar to that of horses discussed in Chapter 21?
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The first modern humans evolved in Africa.
a) What are two kinds of evidence supporting that conclusion, one based on data from living individuals and one from some other source of data?
b) What are some unique anatomic and behavioral traits that are unique to hominid species compared to primates, and to Homo sapiens in particular, compared to other hominid species?
Explain the change in the classification of hominids in recent years. What hominoids are we now considered to be most closely related to?
Has Brain Size Increased as Hominids Evolved?
Chapter 34 Solutions
BIOLOGY 12E CONNECT ACCESS CARD
Ch. 34.1 - List the specific characteristics of echinoderms.Ch. 34.1 - Explain what is meant by pentaradial symmetry.Ch. 34.1 - Describe the five extant classes of echinoderms.Ch. 34.2 - List the defining characteristics of chordates.Ch. 34.2 - Prob. 2LOCh. 34.3 - Describe the nonvertebrate chordates and their...Ch. 34.4 - Prob. 1LOCh. 34.4 - Prob. 2LOCh. 34.5 - Prob. 1LOCh. 34.5 - Prob. 2LO
Ch. 34.6 - Prob. 1LOCh. 34.6 - Prob. 2LOCh. 34.7 - Prob. 1LOCh. 34.7 - Prob. 2LOCh. 34.7 - Prob. 3LOCh. 34.8 - Prob. 1LOCh. 34.8 - Prob. 2LOCh. 34.9 - Prob. 1LOCh. 34.9 - Prob. 2LOCh. 34.10 - Describe the characteristics and major groups of...Ch. 34.10 - Prob. 2LOCh. 34.10 - Prob. 3LOCh. 34 - Prob. 1IQCh. 34 - Prob. 2IQCh. 34 - Which of the following structures is not a...Ch. 34 - Which of the following statements regarding all...Ch. 34 - In the figure, item A is the ______ and item B is...Ch. 34 - Prob. 4UCh. 34 - The ____ of the bony fish evolved to counter the...Ch. 34 - Why was the evolution of the pulmonary veins...Ch. 34 - Which of the following groups lacks a...Ch. 34 - All of the following are characteristics of...Ch. 34 - Which of the following evolutionary adaptations...Ch. 34 - The reason that birds and crocodilians both build...Ch. 34 - Prob. 2ACh. 34 - The fact that monotremes lay eggs a. indicates...Ch. 34 - Prob. 1SCh. 34 - Some people state that the dinosaurs have not gone...Ch. 34 - In what respect is the evolutionary...
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- Given the distribution of Hox genes among animals, what would you predict about the number and type of Hox genes in the common ancestor of all animals?arrow_forwardHow do paleoanthropologists explain why the earliest hominins evolved in Africa and not elsewhere?arrow_forwardWhat is the difference between a "derived" versus a “primitive" trait? Give an example of both, seen in Au. afarensis. Which of the paleoenvironment hypotheses have been used to describe early hominin diversity, and which have been used to describe bipedalism? Which anatomical features for bipedalism do we see in early hominins? Are these primarily obligate bipeds? Explain. Describe the dentition of gracile and robust australopithecines. What might these tell us about their relative diets? List the hominin species argued to be associated with stone tool technologies. Are you convinced of these associations? Why/why not?arrow_forward
- What is both the physical and cultural evidence that Homo sapiens nenaderthalensis is an ancestral hominin to Homo sapiens sapiens (modern humans)?arrow_forwardWhich statement is NOT true about the early hominins: A) The angle of the foramen magnum on Sahelanthropus tchadensis ("Toumai") indicates a vertically oriented upper neck, a clear sign of bipedalism. B) The reconstructed skeleton of Ardipithecus ramidus ("Ardi") suggests she was adapted for bipedal walking and climbing in trees. C) Early hominins such as Sahelanthropus and Ardipithecus had small, chimp-sized brain. D) All of the above are true.arrow_forwardWhat is a hominid?arrow_forward
- Write briefly about the "hobbit" species of hominin. What are the theories about its evolution? What was the species like? When and where did it exist? (Homo floresiensis)arrow_forwardWhat is a hominin?arrow_forwardHomo erectus was most likely the first hominid to successfully migrate to regions beyond Africa. Discuss how the biology and culture of Homo erectus led to its success on three major continents with varying environmentsarrow_forward
- What does the nostril position say about the ancestry of dolphins and other cetaceans.arrow_forwardWhat is the common ancestor of humans and apes?arrow_forwardAdaptations are physical or behavioral traits that help an organism survive in its environment. What are some of the adaptations in the evolution of hominins that allowed for the evolution of the genus Homo to evolve (eventually) into modern humans (Homo sapiens)? (Note: you don’t have to explain why these adaptations allowed the genus to evolve, just list some of the adaptations.)arrow_forward
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