Book cover for Biology : The Unity and Diversity of Life

Biology : The Unity and Diversity of Life

Cecie Starr, Christine A. Evers; Lisa Starr

ISBN #9781337408332

15th Edition

734 Questions

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4,261 Students Helped

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Summary

Learning Objectives

Key Concepts

Example Problems

Explanations

Common Mistakes

Summary

This section provides an in?depth exploration of primate and hominin evolution, highlighting the morphological and genetic transformations that led to modern humans. It covers the development of key traits such as bipedalism, the emergence of toolmaking and culture, and significant interbreeding events with Neanderthals, Denisovans, and other hominins. Fossil records and genetic evidence together paint a detailed picture of our species’ complex origins and adaptive strategies that enabled survival in changing environments.

Learning Objectives

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Key Concepts

CONCEPT

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Example Problems

Example 1

New World monkeys_________. a. lack a tail b. are bipedal c. are dry-nosed primates d. include human ancestors

Example 2

The closest relatives of bonobos are_________. a. chimpanzees b. humans c. tarsiers d. Old World monkeys

Example 3

An S-shaped backbone is an adaptation to_________. a. tool use b. climbing trees c. bipedalism d. eating meat

Example 4

Compared to the other living apes, modern humans have _________. a. a smaller brain b. shorter, finer body hairs c. greater sexual dimorphism in body size d. shorter, weaker thumbs

Example 5

The 3.6-million-year-old footprints left by bipedal walkers in Tanzania were probably made by _________. a. australopiths b. Neanderthals c. modern humans d. Homo erectus

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Step-by-Step Explanations

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Common Mistakes

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