Human Populations Part 1

Professionals who study and make predictions about human populations are called

• stenographers
• demographers
• geologists
• populists

Tags

NGSS.MS-ESS3-4

Which factor contributed most to the exponential growth of the human population?

• more food, better hygiene
• higher birth rates
• higher fertility rates
• increased immigration

Because bith rates have begun to fall, Earth's population will

• soon stabilize at the level it is today-about 7 billion
• begin to decrease until it reaches 5 billion
• increase for a short time and then decrease to current levels
• stabilize somewhere around 9 billion by 2050

Tags

NGSS.MS-ESS3-4

If the death rate of a population is greater than the birthrate, the population decreases.

• True
• False

Tags

NGSS.MS-LS2-4

Exponential growth is slow and gradual.

• True
• False

If a population grows larger than the carrying capacity of the environment, the

• death rate may rise
• birth rate may rise
• death rate must fall
• birth rate must fall

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-6

What does the term carrying capacity describe?

• The maximum number of birth rates for a population.

• The ability of a population to accept new immigrants.

• The ratio of birth rates to death rates in a population.

• The population size that the environment can sustain.

Tags

NGSS.HS-LS2-1

If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

Tags

NGSS.HS-LS2-2

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is a population’s total fertility rate?

• the number of births needed to keep a nation’s population stable

• the average number of children a male member of a population has each year

• the average number of children a female member of the population has during her lifetime

• the total number of babies born in a population each generation

Tags

NGSS.MS-LS1-4