Why childbirth is so difficult. Introduction: Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

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Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

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In some ways, human development is like that of a sea urchin, in others more like the of a frog, and in other ways more like that of a bird, and even more like that of a dog. Explain in a few sentences how this is true for each of these different animals.

Can you suggest why, during the evolutionary history of animals, there has been a tendency for maximum body size to increase?

Answer 2

Question

Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Answer 6

Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Answer 7

Chapter 43.5, Problem 1HYEW

Summary Introduction

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Answer 8

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Answer 9

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Answer 11

Ch. 43.1 - define development and describe how cell division...Ch. 43.2 - Prob. 1CYL Ch. 43.3 - describe early development in amphibians,...Ch. 43.3 - Prob. 2CYL Ch. 43.4 - Prob. 1TC Ch. 43.4 - Prob. 2TC Ch. 43.4 - Prob. 1CYL Ch. 43.4 - Prob. 2CYL Ch. 43.4 - Does the development of a human limb, and the rest...Ch. 43.5 - Prob. 1TC

Why childbirth is so difficult. Introduction: Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Solution Summary: The author explains that the women's hip has evolved wider so that large headed infants would be easily squeezed out. In humans, childbirth is painful due to the large head of a newborn baby and smaller pelvic opening in

Concept explainers

Videos

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Want to see the full answer?

Chapter 43 Solutions

Why childbirth is so difficult. Introduction: Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Solution Summary: The author explains that the women's hip has evolved wider so that large headed infants would be easily squeezed out. In humans, childbirth is painful due to the large head of a newborn baby and smaller pelvic opening in

Concept explainers

Videos

To determine: Why childbirth is so difficult. Introduction: Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.

Want to see the full answer?

Chapter 43 Solutions

To determine:

Why childbirth is so difficult.

Introduction:

Earlier, head of the newborn babies was smaller due to the poor nutrients. But now, the women’s hip has evolved wider so that large headed infants would be easily squeezed out.