Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 18.6, Problem 2CYL
- name and describe some characteristics of the hominin species that played key roles in humans’ evolutionary history?
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How do paleoanthropologists explain why the earliest hominins evolved in Africa and not elsewhere?
Identify three novel characteristics that distinguish hominins from other apes and mammals.
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?
Chapter 18 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 18.1 - How Would the experiments result charge if oxygen...Ch. 18.1 - describe a likely scenario for the origin of life?Ch. 18.1 - describe, for each step in the scenario, some...Ch. 18.2 - Uranium-235, with a half-life of 713 million...Ch. 18.2 - Scientists have identified a free living bacterium...Ch. 18.2 - describe scenarios for the major evolutionary...Ch. 18.2 - State the order in which these events occurred,...Ch. 18.3 - describe fossil evidence of the earliest...Ch. 18.3 - describe the advantages that fostered the origin...Ch. 18.3 - Prob. 3CYL
Ch. 18.4 - Prob. 1TCCh. 18.4 - Does the mudskippers ability to walk on land...Ch. 18.4 - Can ancient DNA reveal the secrets of dinosaur...Ch. 18.4 - Although it may never be possible to recover DNA...Ch. 18.4 - describe the transitions and innovations...Ch. 18.4 - describe the advantages gained by the first plants...Ch. 18.5 - Scientists have cloned a number of animal species,...Ch. 18.5 - explain how extinction has affected the course of...Ch. 18.5 - describe the likely causes of mass extinctions in...Ch. 18.6 - We might be able to more easily distinguish...Ch. 18.6 - Paleontologists recently discovered fossil...Ch. 18.6 - describe the evolutionary history of humans and...Ch. 18.6 - name and describe some characteristics of the...Ch. 18.6 - describe the key features of the most recent phase...Ch. 18.6 - The unexpected discovery that humans interbred...Ch. 18 - Almost all of the oxygen gas in todays atmosphere...Ch. 18 - Extinction a. generally does not occur except...Ch. 18 - In the endosymbiotic origin of the mitochondrion,...Ch. 18 - Which of the following does not list evolutionary...Ch. 18 - Prob. 5MCCh. 18 - Because there was no oxygen in the earliest...Ch. 18 - The molecule _________ became a candidate for the...Ch. 18 - Complex cells that contain a nucleus and other...Ch. 18 - The Sperm of early land plants had to reach the...Ch. 18 - Prob. 5FIBCh. 18 - Prob. 6FIBCh. 18 - Prob. 7FIBCh. 18 - What is the evidence that life might have...Ch. 18 - How did the origin of photosynthesis affect...Ch. 18 - Explain the endosymbiont hypothesis for the origin...Ch. 18 - Name two advantages of multicellularity for plants...Ch. 18 - What advantages and disadvantages would...Ch. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Extinctions have occurred throughout the history...Ch. 18 - In biological terms, what do you think was the...
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- Describe and discuss the importance of at least three specific skeletal features (these can be either cranial or post-cranial) that are unique to early hominins, that distinguished them from the ancestors of modern chimpanzees in 150 words?arrow_forwardExplain the Evolution of the Hominins ?arrow_forwardWhat comparisons are made to support the theory of evolution of modern humans from extinct hominids?arrow_forward
- Identify the change that marks the beginning of hominid evolution.arrow_forwardExplain the pattern of human evolution according to each of the four trends of hominin mosaic evolution: a large brain, transition to bipedality, dental arcades, and the growth of language.arrow_forwardlist TWO similarities between early members of the genus Homo (e.g. H. habilis) and Homo erectus/ergaster that earlier hominins (e.g. gracile Australopithecines) do not have?arrow_forward
- Which hominins might be ancestral to us choose one that you find especially interesting (except H. sapiens) and explain how it fits into the picture of the Hominin family?arrow_forwardEvolution in Humans 1) explain how fossil evidence is used to reconstruct the hominid history 2) explain how genetic evidence is used to document changes in species and populations over time 3) describe several techniques that paleontologists today use to establish fossil agearrow_forwardExplain the pattern of human evolution in reference to each of the four trends of hominin mosaic evolution (cranial capacity, bipedalism, dental arcades, the growth of language).arrow_forward
- Explain the change in the classification of hominids in recent years. What hominoids are we now considered to be most closely related to?arrow_forwardDescribe three derived characteristics of mammals which are advantageous to the occupation of a variety of habitats. Identify three novel characteristics that distinguish hominins from other apes and mammals.arrow_forwardExplain the following: discuss how language played as a vital part in human evolution. what development shows a big difference between homo sapiens and earlier homini species? discuss.arrow_forward
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