Lesson 8.1 Human population distrubtion and density

Question 1

What is population density?

Answer 1

Population density is the number of people per area (square kilometers).

Question 2

What is population distribution?

Answer 2

Population distribution refers to how the population is spread over an area.

Question 3

Give an example of population distribution.

Answer 3

Very few or no people live in deserts and mountains, whereas populations are very high in coastal areas due to the availability of fresh water.

Question 4

What is a population?

Answer 4

A population is all the organisms of one species living in a defined area at the same time.

Question 5

What is the lag phase in population growth?

Answer 5

The lag phase is the period of time in population growth when an organism is adapting to its new environment and the growth is slow.

Question 6

What is the log/exponential phase?

Answer 6

The log/exponential phase is when the growth rate of a population increases over time as all requirements are available.

Question 7

What is the stationary phase?

Answer 7

The stationary phase occurs when the growth rate of a population has slowed down to zero as the carrying capacity is reached.

Question 8

What does carrying capacity mean?

Answer 8

Carrying capacity is the maximum size of a population that an environment can sustain in terms of food, water, and other resources.

Question 9

What is the relationship between birth rate and death rate at stationary phase?

Answer 9

At the stationary phase, the birth rate equals the death rate.