Campbell Biology: Concepts & Connections (9th Edition)
9th Edition
ISBN: 9780134296012
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 8TYK
Studies of DNA support which of the following?
a. Members of the group called australopiths were the first to migrate from Africa.
b. Homo sapiens originated in Africa.
c. Sahelanthropus was the earliest hominin.
d. Chimpanzees are more similar to gorillas and orangutans than to humans.
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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.
According to "The Complex Evolution of Homo sapiens", where were the earliest fossils that are potentially Homo sapiens found? How old are they?
A.Morocco - 3 million years old
B.Kenya - 300,000 years old
C.Morocco - 300,000 years old
D.Tibet - 300,000 years old
A.Ivory rings
B.Jewelry from stone and marble
C.Needles made from bone
D.Both A and B
E.A, B and C
Which of the following early hominins exhibits the most morphological similarities with the last common ancestor of humans and chimpanzees?
a. Orrorin tugenensis
b. Sahelanthropus tchadensis
c. Australopithecus anamensis
d. Ardipithecus ramidus
Chapter 19 Solutions
Campbell Biology: Concepts & Connections (9th Edition)
Ch. 19 - Connecting the Concepts 1. In the primate...Ch. 19 - Connecting the Concepts 2. In the chordate...Ch. 19 - A lamprey, a shark, a lizard, and a rabbit share...Ch. 19 - Why were the Tiktaalik fossils an exciting...Ch. 19 - Fossils suggest that the first major trait...Ch. 19 - Which of the following correctly lists possible...Ch. 19 - Which of these is not a member of the anthropoids?...Ch. 19 - Studies of DNA support which of the following? a....Ch. 19 - The earliest members of the genus Homo a. had a...Ch. 19 - Compare the adaptations of amphibians and reptiles...
Ch. 19 - Birds and mammals are both endothermic, and both...Ch. 19 - One of the misconceptions about human evolution is...Ch. 19 - What adaptations inherited from our primate...Ch. 19 - Summarize the hypotheses that explain variation in...Ch. 19 - A good scientific hypothesis is based on existing...Ch. 19 - Explain some of the reasons why the human species...Ch. 19 - Anthropologists are interested in locating areas...Ch. 19 - SCIENTIFIC THINKING By measuring the fossil...
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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
- According to "Our Earliest Ancestors", 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 fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading B.The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them. C.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. D.The technology for extracting DNA from fossils hasn't been developed yetarrow_forwardThe cladistic classification of apes and humans A. Divides hominids into hylobatids, pongids, and hominids B. Includes tarsiers, lemurs, and lorises C. Uses the term hominid to describe only humans and their ancestors D. Includes three subfamilies within hominids: Ponginae, Gorillinae, and Hominiaearrow_forwardWhich of these species is most likely to share the greatest percentage of DNA with your human professor? a. Australopithecus afarensis b. Homo erectus c. Australopithecus sediba d. Ardipithecus ramidusarrow_forward
- According to "Our Earliest Ancestors", 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 technology for extracting DNA from fossils hasn't been developed yet. B.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. C.The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading D.The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them.arrow_forwardAccording to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, are Denisovans more closely related genetically to Neanderthals or Homo sapiens? A.Homo sapiens B.They are equally related to Neanderthals and Homo sapiens C.They're actually not related to either, and they're more related to Australopithecines D.Neanderthalsarrow_forwardAccording to "Homo erectus – The First Humans”, what are the different hypotheses that might explain the stature of Homo floresiensis? A.Island Dwarfism B.They might be descended from Homo habilis or an Australopithecine C.All the individuals had a genetic mutation D.Both A and Barrow_forward
- According to "Homo erectus – The First Humans”, how old is the oldest Homo erectus fossil (that scientists agree upon) and where was it located? A.1.9 million years old in Kenya B.2 million years old in South Africa C.3 million years old in China D.5 million years old in Kenyaarrow_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_forwardWhat does ancient DNA reveal about historic episodes of interaction between H. sapiens and Neanderthals? A. Neanderthals and H. sapiens reproduced more than once. B. Viruses introduced by H. sapiens contributed to the extinction to Neanderthals. C. Reproduction between H. sapiens and Neanderthals never occurred. D. Neanderthals and H. sapiens migrated out of Africa together.arrow_forward
- Fossils of a dwarf species of human, Homo floresiensis, has been discovered on the Indonesian island of Flores. There has been debate as to who are the immediate ancestors. New fossils have just been discovered and dated at 700,000 years ago. This strongly suggests that their immediate ancestors are A. Homo habilis B. Homo neanderthalensis C. Ardipithecus D. Homo sapiens E. Homo erectusarrow_forwardAccording to "Homo naledi – New Questions on Human Evolution ", what ARE possible explanations for how these individuals got into the cave? A.There was a massacre B.The Homo naledi individuals lived in the cave and died there C.The bodies were deliberately disposed in the cave by other Homo naledi individuals or other hominins D.The Homo naledi individuals went into the cave to hunt animalsarrow_forwardAccording to "Homo naledi – New Questions on Human Evolution ", where was Homo naledi found and how many individuals were found there? A.South Africa and 2 individuals B.Kenya and 2 individuals C.South Africa and 15 individuals D.Kenya and 15 individualsarrow_forward
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