Biogeochemical Cycles Flashcards
1
Q
Intake
A
drinking / osmosis
2
Q
Back to environment
A
peeing / breathing
3
Q
What can pull carbon out of the air and turn it into food? (photosynthesis)
A
Autotrophs
4
Q
What can an autotroph do with carbon?
A
- Build up their bodies
2. Burn food to make energy to survive (Cellular respiration)
5
Q
What can heterotrophs do with carbon?
A
- Build up their bodies n
2. Burn food to make energy (Cellular respiration)b
6
Q
How does body carbon get recycled?
A
- decomposers break it down, some becomes their food, some CO2
- Fossil fuels form if body carbon is trapped for a long time
7
Q
What is Combustion?
A
Burning fossil fuels
8
Q
Why is nitrogen important?
A
Everyone needs it for their DNA and protein for their cells
