Human Population Growth

Question 1

Population

Answer 1

All the organisms of the same species that live in the same area at the same time.

Question 2

Exponential growth

Answer 2

A population that grows by a constant percentage each year, and beyond the usual predicted growth rate.

Question 3

Natural Resource

Answer 3

Part of the environment that supplies materials useful or necessary for the survival of living things.

Question 4

Carrying Capacity

Answer 4

The largest number of individuals of one species that an ecosystem can support over time.

Question 5

Limiting Factors

Answer 5

A factor that can limit the growth of a population

Question 6

Renewable resource

Answer 6

A resource that can be replenished naturally. For example sunlight, water, and wind

Question 7

Non-renewable resource

Answer 7

A resource that cannot be replenished after it is used. For example fossil fuels.

Question 8

What has impacted human population growth?

Answer 8

• Improved sanitation, reducing diseases
• Improved healthcare and technology, which then increases survival of certain diseases and in turn increases average life span.
• Invention of Vaccines, reducing infant mortality (kids survive childhood).
• Improved hygiene meaning less spread of disease (we know about bacteria and wash our hands)

Question 9

How has the increased human population impacted our natural resources?

Answer 9

• Each person will need a minimum amount of resources such as space, water, and food.
• If these resources are used up faster than nature can replenish them, then these resources will become diminished.
• There will then be competition for the resources.

Question 10

How does the age structure vary between developed vs developing countries?

Answer 10

• Developing countries have fewer elderly members and more younger members
  -This is due to the health care not being as good or readily available and therefore life expectancy is shorter.
  -Additionally people have more children as access to birth control is not as easy, and as healthcare is not as accessible a larger number of children die before reaching adulthood.