Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 18, Problem 5MC
Summary Introduction
Introduction:
The hominins include members of genus Homo that have humans and their close relatives under them. Hominins have descended from genus Australopithecines. The first Australopithecines were evolved in Africa and named as Australopithecus africanus. These hominins could walk upright and had limbs like that of apes. They were believed to be the ancestors of early humans.
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Which of the following is one of the main tendencies observed in early hominins, such as australopithecines?
A.
Decrease in the number of incisors
B.
Reduced canine size
C.
Increased facial prognathism
D.
Increased diastema
According to "Homo erectus – The First Humans”, what stone tool is believed to be developed by Homo erectus?
A.Oldowan Chopper
B.Levallois Flake
C.Acheulean Hand Axe
D.Levallois Fishing Rod
Which statement is true concerning hominins and the archaeological record?
a. There is a 10 million year time span of hominin evolution that lacks any record of stone
tools.
b. Stone tools appear before the earliest occurrence of the genus Homo and co-occur with
early non-Homo hominins for over two million years.
c. Modern humans are associated with the Lower and Middle Paleolithic.
d. There are no stone tools in the record at any time when early hominins exist.
Chapter 18 Solutions
Biology
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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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
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- What are the Laetoli footprints? A. Fossilized footprints of Ardi walking across the landscape millions of years ago B. Fossilized footprints of Neanderthals walking across the landscape thousands of years ago C. Fossilized footprints and handprints of Australopithecines walking on all fours across the landscape millions of years ago D. Fossilized footprints of Australopithecines walking across the landscape millions of years agoarrow_forwardWhat two species did early Homo sapiens live with during the end of the Pleistocene? A. Sahelanthropus tchadensis and Denisovans B. Neanderthals and Ardipithecus ramidus C. Neanderthals and Australopithecines D. Neanderthals and Denisovansarrow_forwardHominin evolution up to the point of AMHs occurred during a period of the Earth’s history when the climate a. Was getting steadily warmer with more rainfall b. Stayed about the same as it is now c. Was getting colder and dryer d. Was getting warmer and dryerarrow_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 Australopithecines B.Neanderthals and Ardipithecus ramidus C.Sahelanthropus tchadensis and Denisovans D.Neanderthals and Denisovansarrow_forwardAccording 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_forwardMatch the feature or characteristic to the hominin group in which they are found. Not all answers will be used and some will be used twice. -Frequently has a bony chin on the lower jaw. -Thought to be the common ancestor to both Paranthropus and Homo A. The Neanderthals Has a very large nose and bun of bone at the back of the skull, B. Homo sapiens Has a small face tucked under a short, high braincase. C Paranthropus boisei Known from Europe, the Middle East and central Asia between 30,000 and 400,000 years ago, until it was replaced by H. sapiens. D. Gracile australopithecines -Known from approximately 2.5-4.2 million years ago in East Africa.arrow_forward
- Why can’t scientists just do DNA analysis on these fossil hominins to determine if they are a separate species and possibly what species they belong to? A. The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them. B. The technology for extracting DNA from fossils hasn't been developed yet. C. The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading D. Scientists can't perform DNA analysis on fossil hominins because the fossils have been contaminated with modern human DNA over the years, making it impossible to isolate the ancient genetic material.arrow_forwardWhat do the marks found on the Bodo cranium indicate? A. The removal of flesh from the skull by tool-using hominins, either as a ritual or as some form of cannibalism. B. The earliest example of carnivore tooth marks on a hominin fossil. C. A pathology associated with poor diet, which may have contributed to this individual’s death. D. The fabrication of the fossil as a hoax, demonstrating that science is ultimately self-correcting.arrow_forwardHow does the amount of Neanderthal DNA in modern humans vary geographically? a. Individuals of European descent have the most Neanderthal DNA. b. The amount of Neanderthal DNA in modern humans is consistent across all populations. c. Individuals of African descent have the most Neanderthal DNA. d. Individuals of East Asian descent have the most Neanderthal DNA.arrow_forward
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