Population Growth
Growth & Limiting Factors
Biodiversity & Eutrophication
Ecosystems
Human Niche
100
What type of Growth Model is this?
Exponential Growth model
100
Define sustainability.
Sustainability is the ability of the biosphere to maintain its balance indefinitely, keeping lifeforms in check.
100
Define Eutrophication.
Eutrophication is an overload of nutrients in a body of water that causes uncontrolled algal growth.
100
What is primary succession and when is it required?
When plants must grow a new habitat beginning with rock. This happens after volcanic eruptions.
100
Name 3 or more greenhouse gases.
1) water (H2O)
2) carbon dioxide (CO2)
3) ozone (O3)
4) methane (CH4)5) nitrous oxide (N2O)
6) chlorofluorocarbons (CFCs)
200
What type of Growth Model is in the shape of an S and includes a carrying capacity?
Logistic Growth model
200
Define limiting factors.
Limiting factors hinder the growth of a population.
200
True or False: Chemical fertilizers and dish detergents can enter lakes and oceans causing eutrophication from excess nutrients.
True.
200
What is secondary succession and when is it required?
Secondary succession is starting a new habitat beginning with soil. It occurs after a landslide or abandoned field regrows new plants or trees.
200
Define climate change.
Climate change includes global temperature and weather pattern changes over a long period of time.
300
What is carrying capacity?
Maximum population size that an area can sustain.
300
Name two major ways populations increase.
1) Increase birth rates
2) Immigration
300
Why do fish die from eutrophication?
The algae uses up all the dissolved oxygen in the water and the fish cannot breathe.
300
What is a pioneer species?
These are the first plants and animals that tend to return after an area is disturbed. They tend to be fast-growing and hardy, but short-lived.
300
Define ecological footprint.
An ecological footprint model compares an area's used natural resources (cropland, fisheries, forest, and pasture) to the amount of natural resources it generates.
400
What type of growth model only occurs under ideal environmental conditions?
Exponential growth model
400
Name two major ways populations decrease.
1) More deaths than births.
2) Increase emigration.
400
Define biodiversity.
Biodiversity refers to the number of different species (richness) in an area and the proportionality of all population species (evenness).
400
What is a climax species?
These species are stable, long-lived plants and animals that mark the end of succession.
400
Define bioremediation.
This is a technique that uses organisms to remove or neutralize hazardous materials. An example is the oil eating bacteria found in the Mariana Trench that helped with an oil spill clean up in the Gulf of Mexico.
500
Which population concept does this map represent?
Population Density - the number of individuals in a given space
500
Give 3 examples of limiting factors.
1) Predation
2) Disease
3) Lack of food
500
Name 3 reasons humans cause a decrease in biodiversity.
1) Habitat loss
2) Over using resources (water, minerals, wood...)
3) Invasive species being introduced
4) Overuse of chemical fertilizers in farming
500
Can pioneer species and climax species live in the same habitat? If so, why?
Yes, because succession is a gradual process where various species fade in and out as the dominant species. Just because the dominant species is a climax species doesn't mean the pioneer species are entirely gone.
500
Why are invasive species problematic?
These organisms rapidly reproduce and overtake native species, lowering biodiversity.