Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Chapter 9, Problem 16MC

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Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Compared with external fertilization, in internal fertilization,a. male gametes have a higher chance to come into close proximity tofemale gametes.b. gametes are less protected against predation or other harmfulenvironmental factors.c. there is a decreased likelihood of desiccation of gametes.d. gametes come into contact only outside the mother’s reproductivetract.e. Both b and c are true of internal fertilization.

Compare and contrast sexual and asexual reproduction. Identify the most accurate statement. a. Asexual reproduction results in more offspring per mother. b. Sexual reproduction is always more costly. c. Sexual reproduction is associated with an increase in homozygosity. d. Asexual reproduction is always bad for a species.

A male and female gibbon that are similar in size likely demonstrate the lack of sexual dimorphism… A : due to the polygamous social structure in gibbons. B : as the result of unequal access to resources within their environment. C : which is not related to social structure in gibbons. D : due to adaptations related to Allen’s rule. E : due to decreased competition for mates in a monogamous social structure.

Answer 2

Question

Chapter 9, Problem 16MC

Summary Introduction

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Answer 3

Question

Chapter 9, Problem 16MC

Summary Introduction

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Answer 4

Question

Chapter 9, Problem 16MC

Summary Introduction

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Answer 5

Chapter 9, Problem 16MC

Summary Introduction

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Answer 6

Chapter 9, Problem 16MC

Summary Introduction

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Answer 7

Chapter 9, Problem 16MC

Summary Introduction

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Answer 8

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Answer 9

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Answer 11

Ch. 9 - Prob. 1SA Ch. 9 - Prob. 2SA Ch. 9 - Prob. 3SA Ch. 9 - Prob. 4SA Ch. 9 - Prob. 5SA Ch. 9 - Prob. 6SA Ch. 9 - Prob. 7SA Ch. 9 - Prob. 8SA Ch. 9 - Prob. 9SA Ch. 9 - Prob. 10SA

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Solution Summary: The author explains that sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Concept explainers

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Chapter 9 Solutions

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Solution Summary: The author explains that sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

Concept explainers

Introduction: Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.

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Chapter 9 Solutions

Introduction:

Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.