Round and Round
Growing Populations
What is Human's Role in the Ecosystem? In this category you will both tell me the theory and what our response to that theory is.
Mystery Box
100
What is the breaking down of phosphates into phosphorus?
Mineralization
100
What is the maximum number in a population that an area can sustain?
Carrying capacity
100
List three kinds of greenhouse gases.
Carbon dioxide (CO2)
Methane
Water vapor
100
What type of growth accounts for limiting factors?
Logistic growth
200
What is the process of converting atmospheric nitrogen into a form that plants can absorb and use?
Nitrogen fixation
200
After a catastrophic event, what are the first species to return to an area?
Pioneer species
200
Daily Double!!!!
What is the theory and response to greenhouse gases.
Theory: Humans are producing too much greenhouse gases, which contribute to global warming
Response: Humans release greenhouse gases, but natural processes are responsible for most of the greenhouse gases released into the atmosphere
200
What are gases that trap heat within the atmosphere?
Greenhouse gases
300
Which bacteria convert ammonia to nitrate (which is more usable to plants)?
Nitrifying bacteria
300
What is Eutrophication?
Excess nutrients in a lake. This means more algae that die and increases the population of decomposers. With more decomposers, there is not enough oxygen for the fish, so they die.
300
Daily Double!!!!
What is the theory and response to extinction rates?
Theory: Human population growth is to blame for mass extinctions.
Response: Evolutions claim the fossil record shows a ton of extinctions. Christians say that the fossil record shows a ton of new species.
300
Those who believe in a Biblical worldview believe what about the fossil record?
They believe it shows a record of new species.
400
List three places that precipitation goes to in the water cycle.
Plant roots
Evaporating back to the atmosphere
Runoffs to the water table
400
Explain the difference between primary and secondary succession.
Primary succession - succession that begins with a barren landscape
Secondary succession - succession in a disturbed landscape that already has soil
400
What is the theory and response to climate change?
Theory: Humans are to blame for climate change
Response: The earth's climate is changing. But, it tends to oscillate. Some theories have found that differences in the sun's activity may cause differences in global temp.
400
What are some functions of phosphorus?
Promotes growth in animals and plants, forms DNA and RNA, and is needed for structure and energy transport in cells
500
Explain how the nitrogen cycle works.
Nitrogen gets to the soil via food and excrement. Nitrogen-fixing bacteria in the soil fix atmospheric nitrogen as ammonia. Nitrifying bacteria convert ammonia to nitrate. Plants take in nitrate through the roots to be used for protein production. Denitrification is done by bacteria to get nitrogen back into the atmosphere.
500
Draw graphs showing logistic growth and exponential growth.
500
What is the theory and response to our ecological footprint?
Theory: We are using way too much of earth's resources to sustain itself.
Response. Calculations on ecological footprints often cannot accurately model every factor involved. We have developed technology to be able to use land more efficiently. But, calculations of ecological footprint can show where we are using resources
500
List five ways that carbon dioxide can enter the atmosphere.
Decay of dead organisms
Decomposition of plant matter
Animal waste
Volcanic eruptions
Burning of fossil fuels