The zone of the ocean that contains 90% of aquatic life.
What is continental shelf (coastal zone)?
100
Human impact on the carbon cycle
What is tree harvesting and burning of fossil fuels?
100
Causes of Greenhouse effect
What is emission of greenhouse gases from human use of energy?
200
Global cycles
What is nitrogen, carbon, water?
200
Biggest sink for carbon
What is the ocean?
200
lentic vs. lotic
What is non-moving water body (lake) vs. a flowing water body (river or stream)?
200
Eutrophication
What is the input of excess nutrients into an aquatic system?
200
Effects of greenhouse effect
What is increase in surface temperature, rising sea levels, etc.?
300
nitrogen fixation vs. denitrification
What is converting atmospheric nitrogen to a form of nitrogen usable by plants and animals vs. converting ammonium to atmospheric nitrogen. Both of these processes are carried out by bacteria.
300
Biggest sink for nitrogen
What is the atmosphere?
300
Zones of the ocean
What is coastal zone, euphotic, bathyal, and abyssal zones?
300
Human impact on the nitrogen cycle
What is input of nitrogen in aquatic systems which create algal bloom which then decrease the dissolved oxygen content in the lake which then causes death of aquatic species?
300
Human impact on coral reefs
What is coral bleaching from scuba diving/fishing, anchors on boats, and pollution?
400
Transpiration
What is the evaporation from water from plants?
400
The human uses for carbon, nitrogen, water, and phosphorus?
What is carbohydrates, amino acids, hydration, and bones?
400
The characteristics of oceanic zones.
What is coastal- most life, near the coast, high light; euphotic- high light, oxygen, life; bathyal- mid light, life, and oxygen; abyssal- low light, oxygen, life?
400
Human impact on the phosphorus cycle.
What is input of phosphorus into aquatic systems which causes algal blooms and therefore decreases the dissovled oxygen content?
400
Benefits of coral reefs (3)
What is medicine, reduce greehouse effect (absorb CO2 to make their skeleton), tourist attraction, habitat for a variety of species?
500
Describe the steps of the nitrogen cycle.
What is nitrogen fixation- bacteria converts atmospheric nitrogen to nitrogen that can be used by decomposers nitrification- nitrogen is transformed to a type that plants can use. assimilation- fixing it in the plant and animal can eat plant and therefore take up N. ammonification- break down N containing compounds and return N to soil. denitrification- bacteria convert N in an O2 poor environment back to atmospheric nitrogen?
500
human impact on water cycle
What is deforestation, water diversion, and pollution?
500
Zone and characteristics of lake zones
What is littoral- top section that recieves the most sunlight, limnetic- middle section that recieves little sunlight, profundal- that recive little/no sunlight and is located at the bottom of a lake or pond?
500
Causes of increase in carbon dioxide concentrations
What is increase in the amount of cars and people?
500
Benefits of wetalnds (3)
What is prevent erosion, habitat for a variety of species, reduce flooding as well as drought?