Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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Chapter 23, Problem 10TYK

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Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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The figure shows a phylogenetic tree of various members of the order Proboscidea, which includes modern elephants. Which of the following claims is best supported by the information in the figure ? a.The mastodon and the Stegodon diverged from their common ancestor 22 million years ago. b.The common ancestor of the African elephant and the mastodon is the Palaeomastodon. c.The mammoth diverged from its most recent common ancestor with African elephants before the mastodon diverged from its most recent common ancestor with Stegodons. d.The Asian and African elephants are the most closely related species shown on the tree.

Select the taxon that MOST CLOSELY applies to each of the statements below regarding anthropoids. Each term may be used once or not at all. Hominin genus with small head and oval birth canal. a. Homo sapiens + Species with a brain mass approximately three times larger than that of b. Homo heidelbergensis other extant hominins. c. Homo floresiensis * Species that comparative genomics suggests hybridized with Homo sapiens. d. Gigantopithecus e. Aegyptopithecus + Small-statured species found in Indonesia up to about 50,000 years ago. f. Homo neanderthalensis + Genus conjectured by some to have been responsible for the Yeti myth in southeast Asia. g. Homo h. Homo erectus i. Ardipithecus ramidus j. Proconsul k. Homo habilis 1. Australopithecus m. Australopithecus afarensis

Why are the Dmanisi Homo erectus fossils significant? A. They demonstrate that H. erectus independently evolved in Western Asia and Africa. B. They show that H. erectus evolved in Western Asia and then migrated to Africa. C. They demonstrate that H. erectus migrated to Western Asia shortly after evolving in Africa. D. They show that H. erectus migrated from Europe into Western Asia.

Answer 2

Question

Chapter 23, Problem 10TYK

Summary Introduction

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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Question

Chapter 23, Problem 10TYK

Summary Introduction

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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Answer 4

Question

Chapter 23, Problem 10TYK

Summary Introduction

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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Answer 5

Chapter 23, Problem 10TYK

Summary Introduction

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

Answer 6

Chapter 23, Problem 10TYK

Summary Introduction

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

Answer 7

Chapter 23, Problem 10TYK

Summary Introduction

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

Answer 8

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Answer 11

Ch. 23.1 - What biological materials are the most likely to...Ch. 23.1 - Prob. 2SB Ch. 23.1 - Prob. 3SB Ch. 23.2 - Prob. 1SB Ch. 23.2 - Prob. 2SB Ch. 23.3 - Which type of geographical distribution requires...Ch. 23.3 - Why do distantly related species that live in...Ch. 23.4 - What factors might allow a population of organisms...Ch. 23.4 - What events apparently triggered the mass...Ch. 23.4 - Prob. 3SB

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

Solution Summary: The author concludes that the fossils of Premedosaurus provide an example of a disjunct distribution.

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Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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Chapter 23 Solutions

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

Solution Summary: The author concludes that the fossils of Premedosaurus provide an example of a disjunct distribution.

Concept explainers

Videos

Introduction: Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.

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Chapter 23 Solutions

Introduction:

Fossils are the remains of ancient organisms. Fossil records give direct and indirect evidence of the life which existed on the earth millions of years ago. The types of fossils include mold fossils, cast fossils, trace fossils, and unaltered fossils.