Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 18.6, Problem 1TC
Paleontologists recently discovered fossil hominins with features characteristic of modern humans in 160,000-year-old sediments in Africa. Which hypothesis does this new evidence support?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A paleontologist finds a hominid fossil skull in a stratum dated at 4.4 MYA in
eastern Africa. The skull has a relatively small braincasea and similarly-shaped
teeth. Which of the following hominid species would the skull most likely be a fossil
of?
Homo erectus
Ardipithecus ramidus
Australopithecus africanus
Homo neanderthalensis
A construction project required digging hundreds of feet into the ground, which exposed many discrete strata. After a thorough investigation, paleontologists do not find fossils of Tiktaalik or any similar species. Explain why this finding could not be used to refute the theory of evolution.
Why don't paleoanthropologists use C-14 dating to understand when early hominins lived?
Chapter 18 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 18.1 - describe a likely scenario for the origin of life?Ch. 18.1 - How Would the experiments result charge if oxygen...Ch. 18.1 - describe, for each step in the scenario, some...Ch. 18.2 - describe scenarios for the major evolutionary...Ch. 18.2 - Uranium-235, with a half-life of 713 million...Ch. 18.2 - State the order in which these events occurred,...Ch. 18.2 - Scientists have identified a free living bacterium...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 - Can ancient DNA reveal the secrets of dinosaur...Ch. 18.4 - describe the transitions and innovations...Ch. 18.4 - Prob. 1TCCh. 18.4 - Although it may never be possible to recover DNA...Ch. 18.4 - describe the advantages gained by the first plants...Ch. 18.4 - Does the mudskippers ability to walk on land...Ch. 18.5 - explain how extinction has affected the course of...Ch. 18.5 - Scientists have cloned a number of animal species,...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 - The unexpected discovery that humans interbred...Ch. 18.6 - describe the evolutionary history of humans and...Ch. 18.6 - Paleontologists recently discovered fossil...Ch. 18.6 - name and describe some characteristics of the...Ch. 18.6 - describe the key features of the most recent phase...Ch. 18 - Extinctions have occurred throughout the history...Ch. 18 - Because there was no oxygen in the earliest...Ch. 18 - Almost all of the oxygen gas in todays atmosphere...Ch. 18 - What is the evidence that life might have...Ch. 18 - In biological terms, what do you think was the...Ch. 18 - The molecule _________ became a candidate for the...Ch. 18 - Extinction a. generally does not occur except...Ch. 18 - How did the origin of photosynthesis affect...Ch. 18 - Complex cells that contain a nucleus and other...Ch. 18 - In the endosymbiotic origin of the mitochondrion,...Ch. 18 - Explain the endosymbiont hypothesis for the origin...Ch. 18 - The Sperm of early land plants had to reach the...Ch. 18 - Which of the following does not list evolutionary...Ch. 18 - Name two advantages of multicellularity for plants...Ch. 18 - Prob. 5FIBCh. 18 - Prob. 5MCCh. 18 - What advantages and disadvantages would...Ch. 18 - Prob. 6FIBCh. 18 - Prob. 6RQCh. 18 - Prob. 7FIBCh. 18 - Prob. 7RQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How do paleoanthropologists explain why the earliest hominins evolved in Africa and not elsewhere?arrow_forwardIf you as a paleoanthropologist are plannin an excavation at a hominin site in East Africa which is dated to about 2 million years old, which fossil hominin species might you expect to find?arrow_forwardAccording to "Homo naledi – New Questions on Human Evolution ", what did scientists NOT find at the site that they probably expected to find? A.No other hominin species at the site B.No evidence of fire, tools, artifacts, or other animals (except 1 bird) C.No skulls or craniums at the site D.No evidence of art or jewelryarrow_forward
- Evolution 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_forwardHominins likely diverged from their closest ape cousins such as gorillas and chimpanzees around 2 million years ago. Is this statement true or falsearrow_forwardWhy is it so difficult to determine the sequence of hominin ancestors that have led to modernHomo sapiensarrow_forward
- According to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, what two species did early Homo sapiens live with during the end of the Pleistocene? A.Neanderthals and Denisovans B.Neanderthals and Australopithecines C.Neanderthals and Ardipithecus ramidus D.Sahelanthropus tchadensis and Denisovansarrow_forwardNeanderthals are recognizably human but have distinctive facial features and a stocky build that were evolutionary adaptations to cold, dry environments. They shared Europe for 10,000 years with Homo sapiens. Today they no longer exist. Beyond these facts the fate of Neanderthals has generated much debate. Why did Neanderthals become extinct? State at least four major factors to explain their fate.arrow_forwardPaleoanthropologists generally agree that Homo erectus belongs in our genus and represents a significant shift towards adaptations important to our own species. However, there is much variation among specimens that are grouped into H. erectus. Your instructor will let you know which of these fossil representatives to use for the exercise today.Based on your measurements and comparisons in the table above, what are major differences among Au. africanus, H. habilis, and H. erectus? Do you think H. habilis is more like Australopithecus or Homo? How do these three species reflect the major environmental pressures of the time periods in which they lived, respectively? List three features that are changing in the genus Homo due to these selective pressures. List three features found in H. erectus that are derived, compared to Au. africanus.arrow_forward
- Which hominins might be ancestral to us?arrow_forwardWrite 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_forwardAccording to "Homo naledi – New Questions on Human Evolution ", what did scientists NOT find at the site that they probably expected to find? A.No evidence of fire, tools, artifacts, or other animals (except 1 bird) B.No skulls or craniums at the site C.No evidence of art or jewelry D.No other hominin species at the sitearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Fossils & Evidence For Evolution | Evolution | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=iYr3sYS9e0w;License: Standard YouTube License, CC-BY
Dig In To Paleontology; Author: SciShow Kids;https://www.youtube.com/watch?v=1FjyKmpmQzc;License: Standard YouTube License, CC-BY