Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 26, Problem 1CT
Summary Introduction
To explain: From the standpoint of divergence time, there is no reason to think that either bonobo society or chimpanzee society is a better model for human behavior.
Concept introduction: Human beings are apes, and they share several characteristics with other non-human apes. One such characteristic is the social construct. Human evolution is known for cultural and social evolution as well. Therefore, it is necessary to study the other non-human apes and their social construct as to how social and cultural evolution diverged from their common ancestor.
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CHARACTER
SEXUAL DIMORPHISM
MALES FEED YOUNG
Cassin's Vireo
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5) Which of the hypotheses in part 4 is consistent with your analysis? Explain why in a brief paragraph.
Humans often survive beyond their childbearing years, which is unique among primates. The
grandmother hypothesis states that human longevity beyond childbearing years is selected for
because grandmothers benefit the children of their offspring. This effectively increases
survivorship of the offspring of their offspring (two generations into the future). Assuming that
human longevity also has a cost, e.g. reduced fecundity (number of offspring), which of the
following would most likely produce selection for longer lives?
(Not required, but if you are interested see this popular press story about the "evolution" of this
hypothesis: http://www.theatlantic.com/health/archive/2012/10/the-evolutionary-importance-of-
grandmothers/264039/ 2 )
Selection only occurs if females, and not males, have extended lives, that is why males have a shorter life
expectancy
O Human grandmothers must only nurture their own children and not their grandchildren
O Increased survival in grandchildren due to…
Chapter 26 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 26 - Data Analysis Activities Neanderthal Hair Color...Ch. 26 - Data Analysis Activities Neanderthal Hair Color...Ch. 26 - Prob. 3DAACh. 26 - Prob. 1SQCh. 26 - The closest relatives of bonobos are ________. a....Ch. 26 - Prob. 3SQCh. 26 - Prob. 4SQCh. 26 - The 3.6-million-year-old footprints left by...Ch. 26 - The position where a spinal cord enters the skull...Ch. 26 - Prob. 7SQ
Ch. 26 - Prob. 8SQCh. 26 - A prominent chin is typical of _______. a. Homo...Ch. 26 - Prob. 10SQCh. 26 - Prob. 11SQCh. 26 - Prob. 12SQCh. 26 - Prob. 13SQCh. 26 - Match each group with its description. _____...Ch. 26 - Prob. 15SQCh. 26 - Prob. 1CTCh. 26 - Think about the pattern of human dispersal. Given...Ch. 26 - Prob. 3CT
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