slowing of population growth). In Step 1, we explore the effect of changing the age of reproduction, using Nigeria as an example. You will consider the human and ecological impacts of unchecked population growth as well as the human cost of China’s successful attempt to curb its own growth answer questions
slowing of population growth). In Step 1, we explore the effect of changing the age of reproduction, using Nigeria as an example. You will consider the human and ecological impacts of unchecked population growth as well as the human cost of China’s successful attempt to curb its own growth answer questions
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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In this lesson, we explore population momentum (the time lag between a change in birth/death rates and the
slowing of population growth). In Step 1, we explore the effect of changing the age of reproduction, using
Nigeria as an example. You will consider the human and ecological impacts of unchecked population growth as
well as the human cost of China’s successful attempt to curb its own growth
answer questions
Transcribed Image Text:### Exploring Global Population Projections and Age Distribution
Understanding population dynamics is crucial for planning and policy-making. Below, we present a series of graphs that outline projected population growth and age distribution over different time frames.
#### 1. Current Population (Now)
- **Population Projection Graph**:
- **X-axis**: Years (from 1950 to 2050)
- **Y-axis**: Population in millions
- **Curves**:
- Projected (grey dotted)
- Simulated (solid red)
- Age 65+ (solid black)
- Mark: A diamond shape represents the current population.
- **Current Population**: 462 million
- **Population by Age Group Graph**:
- **X-axis**: Population in millions
- **Y-axis**: Age groups (in 5-year intervals from 0-4 to 100+)
- **Bars**:
- Blue for females
- Red for males
#### 2. Population in 15 Years
- **Population Projection Graph**:
- **Current Population in 15 Years**: 328 million
- **Population by Age Group Graph**:
- Similar layout, with clearly marked age groups. Notably, the age group 25-29 is highlighted as having 11.5 million males.
#### 3. Population in 5 Years
- **Population Projection Graph**:
- **Current Population in 5 Years**: 398 million
- **Population by Age Group Graph**:
- The age distribution continues to shift, indicative of trends in aging and birth rates.
#### 4. Population in -5 Years
- **Population Projection Graph**:
- **Current Population in -5 Years**: 546 million
- **Population by Age Group Graph**:
- Demonstrates the demographic changes over the past 5 years.
### Analysis and Insights
The graphs above highlight significant trends in global demography:
- **Population Growth**: The overall trend shows a clear increase in population over time, as indicated by the projected and simulated lines.
- **Aging Population**: The sections representing the population aged 65+ are growing, suggesting an increasing aging population.
- **Age Distribution**: The age distribution graphs provide a visual representation of the population structure, showcasing both male and female distributions across different age
Transcribed Image Text:- How and why does the pyramid shape change?
- How does an increase or decrease in the average childbearing age group change the population? Why do "first world" countries tend to have older childbearing women than "third world" countries?
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