Ecosystems & Energy Flow
Biodiversity & Population Ecology
Earth's Systems and Cycles
Human Impact & Land Use
Climate and Miscellaneous
100
This biome has the highest net primary productivity.
What is the rainforest?
100
The type of survivorship curve that K-selected species typically exhibit?
What is Type 1?
100
This atmospheric layer contains the ozone layer.
What is the stratosphere?
100
This agricultural technique helps prevent soil erosion by alternating crops.
What is crop rotation?
100
This is the primary reason that carbon dioxide concentrations have increased in the last century.
What is burning of fossil fuels?
200
This is the primary energy source for producers in near-surface marine communities.
What is solar energy from the sun.
200
The factor that is most responsible for habitat fragmentation?
What is human land development?
200
The process by which sedimentary rock is formed.
What is compaction and cementation?
200
This is the primary cause of desertification.
What is deforestation and overgrazing?
200
This atmospheric layer contains most weather phenomena?
What is the troposphere?
300
Which of the following organisms is most likely to be a keystone species in its ecosystem?
(A) Sea Otter
(B) Gray Wolf
(C) American Alligator
(D) Prairie Dog
(E) All of the above
What is E (all of the Above)?
300
This biome is characterized by permafrost and low-growing vegetation.
What is Tundra?
300
Factors which primarily drive ocean currents.
What is temperature and salinity?
300
This irrigation method is most efficient for reducing water waste.
What is drip irrigation?
300
This is the primary cause of El Nino climate variations.
What are warmer surface waters in the Pacific Ocean?
400
The process that converts nitrogen gas into a form usable by plants?
What is nitrogen fixation?
400
The carrying capacity of a population is defined as
What is the maximum number of individuals an environment can support?
400
This type of plate boundary results in subduction zones and volcanic activity.
What is a convergent plate boundary?
400
This human activity has contributed the most to the decline of global fish populations.
What is overfishing?
400
Daily Double: This oceanic process distributes heat from the tropics to the poles?
What is Thermohaline circulation?
500
How does the burning of fossil fuels contribute to increased atmospheric carbon?
Carbon that was stored underground is released into the atmosphere
500
This describes why the Galapagos finches evolved to be specialists.
What is that limited food resources forced them to specialize?
500
This soil horizon contains the highest concentration of organic material?
What is the O horizon?
500
This is the main impact of deforestation on the carbon cycle.
What is reducing carbon sequestration and increasing CO2 levels?
500
Daily Double: This is the primary factor leading to increased skin cancer rates in Australia?
What is ozone depletion?