APES Key Concepts

Questions 1-12 (Fall)1. Sketch a drawing that illustrates the concept of range of tolerance for a population of organisms.

2. Sketch a generalized soil profile. Identify and describe each of the horizons.

3. Diagram the nitrogen cycle. Explain how human activities impact the nitrogen cycle.

4. Diagram the carbon cycle. Explain how human activities impact the carbon cycle. Outline the connections between global warming & the carbon cycle.

5. List and describe 7 ecosystem services.

6. Produce a sketch that illustrates the major life zones in the ocean.

7. Produce a sketch that illustrates the life zones in lake.

8. Make a sketch of a population age-structure diagram. Explain how these diagrams can predict population growth.

9. Sketch the demographic transition model. Label each of the 4 stages.

10. Assume the population of the world is 7.0 billion and growing at a rate of 1.2% how long will it take for the population to double? If this growth rate continues, what would the world’s population be in the year 2187?

11. The country of Apesland has a crude birth rate of 55 and a crude death rate of 30, with equal distribution of males and females.a) Calculate the percent growth rate. Show your work.b) Assuming the growth rate stays constant, calculate the time in years for the population to double.c) In which stage of the demographic transition model would you place Apesland?d) Describe some of the likely living conditions in the country of Apesland.d) Sketch a likely population age-structure diagram for this country.e) Consider your answer for part b. Based on its stage in the demographic transition model, is this a realistic estimate of the doubling time for this country? Explain.

12. Beginning with Chapter 1, turn through the pages and review the major diagrams. Summarize in your mind the main points of each of the graphics. No written response required.

1.Lower limitof tolerance

Upper limitof tolerance

TemperatureLow High

Abundance of organismsFew

organismsFew

organismsNo

organismsNo

organisms

Zone ofintoleranceZone of

physiological stress

Zone ofintolerance Zone of

physiological stressOptimum range

Popu

latio

n Si

ze

Fig. 3-11, p. 43

2.Oak tree

Woodsorrel

Lords andladies

EarthwormDog violet

MoleMillipedeHoneyfungus

Organic debrisbuilds up

Moss andlichen

Rockfragments

Bedrock

Immature soilRegolith

Young soilPseudoscorpion

Mite

Nematode

Actinomycetes

FungusBacteria

SpringtailRed earthmite

Mature soil

Root system

C horizonParent material

B horizonSubsoil

A horizonTopsoil

Grasses andsmall shrubs

Fern

Fig. 3-21, p. 51

O horizonLeaf litter

3.Gaseous Nitrogen (N2)

in AtmosphereNitrogenFixation

by industryfor agriculture

Food Webson Land

Fertilizersuptake byautotrophs

excretion, death,decomposition

uptake byautotrophs

Nitrogenous Wastes,Remains in Soil

NO3–

in Soil

NO2–

in Soilloss by

leaching

1. Nitrificationbacteria convert NH4

+

to nitrite (NO2–)

2. Nitrificationbacteria convert NO2

–

to nitrate (NO3–)

Ammonificationbacteria, fungi convert the

residues to NH3; thisdissolves to form NH4

+

NH3, NH4+

in Soil

loss byleaching

Nitrogen Fixationbacteria convert N2 toammonia (NH3); this

dissolves to formammonium (NH4

+)

Denitrificationby bacteria

Fig. 3-27, p. 58

4.

5.

6.

7.

Littoral

8.

9.

Fig. 7-11, p. 137

Stage 1Preindustrial

Stage 2Transitional

Stage 3Industrial

Stage 4Postindustrial

Low Increasing Very high Decreasing Low Zero Negative

Birth rate

Total population

Death rate

Growth rate over time

Low

High

Rel

ativ

e po

pula

tion

size

Birt

h ra

te a

nd d

eath

rate

(num

ber p

er 1

,000

per

yea

r)

0

10

20

30

40

50

60

70

80

10. Population Calcs.

• Doubling time = 70/growth rate• Present pop = 7 billion, 1.2 % growth• 70/1.2 = 58 years doubling time• Population in 218x = 3 doubling times• 56 billion in 218x

11. Apesland

• 55 birth, 30 death• A) % growth = 55-30 = 25/1000 = 2.5%• B) 70/2.5 = 28 yrs• C) Transitional• D) Like Mexico – improving health, cultural

traditions still exist• E) Prediction is probably too high as growth

rate likely to decrease.

12.

• STUDY!

Questions 12-15 (Spring)13. Draw a simple outline/map the USA. Locate and label the top 6 hotspots on the map. Explain what a hotspot is. Also name and draw in the range of 2 major invasive species.

14. Diagram the major steps in wastewater treatment. Include and label: primary, secondary, tertiary, mechanical, biological, chemical.

15. Draw an oxygen sag curve for a stream exposed to pollution from oxygen demanding wastes. Label each of the zones.

16. Draw and label a dose response curve that illustrates a non-threshold effect. Label the LD50.

17. List (in order) the world’s 7 most deadly infectious diseases. Identify the pathogen associated with each.

18. Calculate the yearly energy use in kWh of a gasoline-powered car that gets 20 mpg and travels 10,000 miles per year. A gallon of gasoline is equivalent to about 30 kWh. If an electric car requires about 30 kWh to go 100 miles, how far could it go in a year on the same amount of energy? How much more efficient is the electric car than the gasoline car (answer in percentage form). Show your work, box your answers and do not use a calculator.

19. Draw a diagram that illustrates the greenhouse effect. Label each of the following: visible light, heat, earth’s surface, troposphere, greenhouse gasses, infrared radiation (heat), and stratosphere. Add to the diagram at least 3 positive feedback loops that can occur in response to global warming. Distinguish between a positive feedback loop and a negative feedback loop.

20. Diagram the process of ocean acidification. Describe the connection between greenhouse gases, global warming and ocean acidification.

21. Diagram the process of ozone depletion and its effects. Label: CFCs, stratosphere, ultraviolet radiation, biological damage. Also find a way to depict the role of the Montreal Protocol.

22. Identify the 4 environmental laws that you think are most important. Explain your reasoning.

23. Create a table with the following 6 column headings: food production, water use, material goods, air quality, energy use, waste. In each column, list at least 5 significant and relevant solutions to environmental problems associated with the column heading.

24. Choose an important ecosystem service from your Semester 1 Key Concept Review. Create a diagram that clearly shows the role this service plays in supporting the ecosystem and humans. Label the important aspects of your diagram.

25. Beginning with Chapter 1, turn through the pages and review the major diagrams. Summarize in your mind the main points of each of the graphics. No written response required.

13.

14.

BiologicalMechanical

15.

Clean ZoneDecomposition

Zone

Septic ZoneRecovery

Zone

Clean Zone

Normal clean water organisms(trout, perch, bass,

mayfly, stonefly)

Trash fish(carp, gar,leeches)

Fish absent, fungi,sludge worms,bacteria

(anaerobic)

Trash fish(carp, gar,leeches)

Normal clean water organisms(trout, perch, bass,

mayfly, stonefly)

8 ppmDissolved oxygen (ppm)

Biological oxygendemand

8 ppmTypes of

organisms

Fig. 11-24, p. 256

16

17

• 1) Pneumonia and flu• 2) HIV• 3) Malaria• 4) Diarrheal diseases• 5) TB• 6) Hep B• 7) Measels

18. Car Calculations

• 10,000 mi ÷ 20 mpg = 500 gal of gas• 500 gal x 30 kWh/gal = 15,000 kWh• 15,000 kWh x 100 mi/30 kWh = 50,000 mi• The electric car is 500% as efficient as the

gasoline car.

19

20

21

22

• ESA 1973• Clean Air Act 1970• Clean Water Act 1972• Montreal Protocol 1987• Kyoto Protocol 1997• Superfund Law 1980• RCRA 1976

23Food Water Materials Air Energy Waste

• Eat less meat• Eat organic• Smaller farms• Intercropping• Terracing• No till• Educate

• No bottled water

• Fix leaks• Drought

tolerant plants• Drip irrigation• If its yellow let it

mellow• Educate

• Underground mining

• Nanotech• Reuse• Renewables

• Educate

• Scrubbers• Don’t smoke• Reduce• Know the risks• Educate

• Buy local• Bike• Solar• Lights off• Fluorescent and

LED• Subsidies• Educate

• Reduce• Reuse• Recycle• Laws• Cradle to cradle• Educate

(This is not a comprehensive list)

24

25

• STUDY!