Questions Flashcards
Photosynthesis Equation
CO2+H2O+light energy–>
C6H12 O6+O2+H2O
Cellular Respiration Equation
C6 H12 O6+O2+H2O –>
CO2+H2O+light energy
What is a pyramid of energy?
Level one : [PRODUCERS]
Level two : [HERBIVORES]
primary consumers
Level three : [CARNIVORES]
secondary consumers3 human activities that prevent the ecosystem from changing?
- spraying chemicals on plants
- cutting grass
- laying cement
Which ecosystem has more biodiversity?
The meadow has more biodiversity because it can hold more species and people are not there to disrupt the animal community. Also more animals live here making the food chain bigger.
Which ecosystem provides a better habitat for animals?
The meadow because there is more places to stay with no people to disrupt.
Exponential Growth
this type of growth allows a population to reach its biotic potential which is the maximum number of offsprings that species could produce if resources were unlimited.
Logistic Graph
The population growth slows, following the exponential growth when the carrying capacity is reached
Sampling
A type of method used to determine population size. Organisms in small areas are counted and projected to an entire area. More suitable for shorter lived species
Mark & Recapture
mathematical formula used to determine population size.
Pyramid of Energy
Gets smaller as you more up because 90% of the energy is lost each time you move to the next level
Biomagnification
gets bigger as it moves to the top because toxins magnify each level.
Inorganic Carbon
- Atmosphere
- Oceans
- Earths Crust
Organic Carbon
- Living organisms
- Bags (peat/coal)
- Fossil fuels
How does the nitrogen cycle play a role in an aquarium?
- Fish give off waste that contains N (NO3)
-N fixing bacteria change ammonia
NH3–>NO2–>NO3
-NO3 used by plants
-Fish eat plants –> ingest nitrates
