Enviro: Unit 5 Exam Review

Ecosystem diversity:

• focuses on variable landscapes within an ecosystem

• is important because more niches lead to more species

• can become a focus of conservation efforts

• All of the above

Tags

NGSS.MS-LS2-5

Which of the following is true of human population growth?

• TFRs are similar from country to country

• Population growth continues to be exponential

• The human population size is currently trending downward

• None of the above

Which of the following is true of extinction?

• Extirpation refers to species that are on the red list

• Earth has experienced mass extinction events before

• Mass extinction means that all species die

• All of the above

Tags

NGSS.HS-LS4-5

Which of the following is true of human population density?

• Density is high in coastal areas

• Density is low in warm areas

• Density is high in the far northern latitudes

• Density is roughly equal regardless of location

Tags

NGSS.HS-ESS3-1

Demographic fatigue:

• Occurs when governments face overwhelming social problems due to large population growth

• Has happened historically, but is not a current challenge

• Occurs when governments face overwhelming social problems due to having too few females in the population

• Hasn't happened historically, but is a potential future problem

What is the natural rate of population change?

• The rate at which populations change due to nature

• The rate at which populations change due to birth and death rates

• The rate at which populations change due to immigration and emigration

• None of the above

Which of the following is true of TFR?

• It stands for Thuli Frown Rate

• The replacement rate is 2.0

• On average, the global TFR has decreased in recent years

• None of the above

Which is true of latitudinal gradient?

• More species richness is found as you approach the equator

• Genetic diversity decreases as you approach the equator

• Less stable environments (think of areas that experience seasons) tend to have more species

• None of the above

Which of the following is true?

• More men than women are living in poverty

• As access to education increases, TFRs tend to decrease

• As representation by women in government increases, TFRs tend to increase

• All of the above

Which of the following is true of biodiversity hotspots?

• They're defined as areas that have relatively few plant species

• They must already have lost a significant portion of habitat due to human activity

• They're often found in the far northern latitudes as environmental conditions there are extreme

• All of the above