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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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A population in which the total fertility rate exceeds the replacement fertility rate is _______.

  1. a. increasing in size
  2. b. decreasing in size
  3. c. not changing in size

Summary Introduction

Concept introduction: Total fertility rate is the average number of offspring of a population that has the capacity to reproduce over the course of a lifetime. Replacement fertility rate is the rate at which each woman has an average of at least one daughter during her reproductive age. The global total fertility rate remains above the replacement fertility rate and is higher in developing nations than developed nations.

Explanation

Reasons for correct statements:

The total fertility rate exceeds the replacement fertility rate in developing nations because of the reason that the infant mortality is higher in developing nations. Infant mortality rates tend to improve, and thus the relationship between the fertility and socio-economic development are maintained.

Option a. is given as “increasing in size”. The age structure of the countries varies with the developing nations having a broad reproductive base that increases the population size over the period of time. Hence, option a. is the correct answer.

Reasons for the incorrect answer:

Option b...

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