Population Growth

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.

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NGSS.HS-LS2-6

The number of years it takes a population to double in size based on its current growth rate

• death rate
• mortality rate
• birth rate
• doubling time

Tags

NGSS.HS-LS4-2

The number of births compared to the total number of people in a population

• death rate
• birth rate
• baby boom
• doubling time

Tags

NGSS.HS-LS2-2

Which is NOT a reason for the decreasing death rate?

• Better health care
• Greater food supply
• Cleaner water
• More pollution

Tags

NGSS.MS-LS2-4

If the number of births is greater than 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-LS2-6

What might happen if the earth exceeds its carrying capacity?

• There might not be room for people to move around.

• There might not be enough food and water for everyone.

• The continents might sink into the oceans.

• Most of the people on the planet would starve.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Why would advances in medicine lead to population growth?

• Curing deadly diseases allows people to live longer

• People are unable to have babies without medical help

• Babies do not grow if they don't take their medicine

• New drugs allow mothers to have multiple births, like octuplets

How can population growth lead to more pollution?

• Too many people breathing causes too much carbon dioxide to enter the atmosphere

• The body heat generated by billions of people leads to an increase in global warming

• More people being born means more paper is needed to print birth certificates

• All people produce waste, so more people equals more waste

Tags

NGSS.MS-ESS3-4

Before 1800, the infant mortality rate was much higher than it is now. What does that mean?

• People didn't have a lot of babies before 1800

• Children did not grow very tall before 1800

• Most women were unable to have babies before 1800

• A lot more babies died during childhood before 1800

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4