Succession
Ecosystems (review)
Human Population
Population Pyramids
Impacts & Strategies
100
The final stage of succession, populations remain stable
Climax community
100
What does the pyramid of biomass represent?
organic matter present at each trophic level
100
Define population distribution
the way the population is spread out across an area (where people live)
100
Is population growing or declining in this pyramid
Declining
100
Define ageing population
population with a high percentage of old people (65+)
200
You would see bare rock (no soil), lack of plants, only pioneer species in this type of succession
Primary Succession
200
Where is methane stored in the Tundra
In permafrost
200
In the video "Don't Panic...", how are the people of Bangladesh being helped to lower their fertility rates?
Education in family planning
Giving the women birth control
200
Identify the age group with the largest percentage of the population
0-4
200
Name 2 strategies for managing a changing population.
1. improved availability and education of contraception
2. Education and opportunities for women
3. Improved healthcare
4. Local, national, global policies: pronatalist, antinatalist, united nations agenda 21, club of rome
300
What is the origin of secondary succession?
Starts from an area previously inhabited, with soil.
300
Write the word equation for photosynthesis
Carbon Dioxide + Water + Sunlight = Glucose + Oxygen
300
Calculate this population density:
The population size in Taiwan is 23,604,265 in an area of 36,193 km2. What is the population density?
Round your answer to the nearest 10th
652.2 pp/km2
300
What stage is this pyramid in? 
Stage 4
300
Distinguish from the pronatalist and antinatalist policies
Pronatalist - encourages people to have children
Antinatalist - discourages people from having children
400
****Double Jeopardy****
Give 2 characteristic of pioneer species
High stress tolerant, hardy: withstand harsh environments, grow quickly, short shallow roots, adapted to conserve water, tough outer layer
400
How is energy lost from a food web
through metabolic heat (cellular respiration, excretion)
400
****DOUBLE JEOPARDY****
State one example of how each of these influence population density within a country:
Environmental Factor
Economic Factor
Social Factor
Environmental: geographic (soil fertility, land masses) climate, availability of resources (food, water)
Economic: job opportunities, wages
Social: healthcare, schools, infrastructure, culture, religion, politics
400
Give one reason for a bulge in a population pyramid?
Immigration, baby boom, improved healthcare
400
State 3 impacts with an ageing population?
Shrinking workforce, older people need to be taken care of, financial pressures - economy decreases, insufficient pensions, more pressure for healthcare systems, poverty amongst elderly, increase retirement age, care homes
500
HOW does a pioneer species first colonize an area?
Through seeds/spores carried by wind, insects, birds, humans etc.
500
Which trophic level has the most energy?
1st trophic level
500
Why did the government in China implement the "one child policy" between 1980-2016?
They were afraid there would be insufficient resources
500
Double Jeopardy
What is the dependency ratio for Florida
Population Size:
0-14 yrs = 4,057,419
15-65 yrs = 11,281,585
65 yrs = 3,198,965
64.3%
500
Give 2 reasons for the differences in the population pyramids for HIC and LIC
HIC - better healthcare, increased life expectancy = higher elderly population, lower deathrates, better standard of living
LIC - higher birth rates - no contraception and education, poor sanitation and healthcare - people don't live to older ages