3.6 - Age structure diagrams

Question 1

What are age cohorts and growth?

Answer 1

groups of similarly aged individuals

Question 2

What are the age cohorts?

Answer 2

0-14 = prereproductive
15 - 44 = reproductive age
45 + = post reproductive

Question 3

Size difference between 0-14 & 15-44 indicates growth rates…

Answer 3

• Larger 0-14 cohort = current & future growth
• Roughly equal 0-14 & 15-44 = slight growth/stable
• Larger 15-44 = pop. decline

Question 4

Explain pyramid shapes and their growth

Answer 4

• Extreme Pyramid shape = rapid growth
• Less extreme pyramid = slow, stable growth
• House = stable, little to no growth
• Narrowest @ base = declining pop.