Plants gather their carbon from this _________sphere.
What is the atmosphere
100
The chemical formula for atmospheric nitrogen gas
What is N2
100
Phosphorus makes is common in this in the lithosphere
What are rocks?
100
The source of most of the energy in Earths ecosystems
What is the sun?
200
The percentage of the atmosphere that is CO2
What is 0.04%
200
The percentage of the atmosphere that is nitrogen
What is 78%?
200
The phosphorus cycle is the ____________ of the cycles we learned about
What is longest or slowest?
200
Two names for an organism that makes its own nourishment.
What is producer and autotroph?
300
The process by which plants take CO2 out of the air and use it to make sugars.
What is photosynthesis?
300
The process by which nitrogen is released back into the atmosphere
What is denitrification?
300
Examples of an important biological molecules with 3 letter abbreviations that require phosphorus
What are DNA, RNA, and ATP?
300
The law of conservation of energy
What is "energy cannot be created or destroyed"?
400
The atomic number of carbon
What is 6?
400
Nitrogen is a vital part of these building blocks of protein.
What are amino acids?
400
One way the phosphorus cycle differs from the other biogeochemical cycles we learned about.
What is not involving the atmosphere?
400
______ Level describes each "link" in a food chain
What is a trophic level?
500
A non-respiration way humans have effected the carbon cycle for thousands of years. (Not fossil fuels)
What is deforestation?
500
This group of plants have a symbiotic relationship with rhizobia
What are legumes?
500
A potential danger of overusing phosphates in fertilizer.
What is eutrophication or algae blooms.
500
The amount of energy in Calories that would have left a food chain by the time a secondary consumer eats 500 Calories. (Assuming a 10% transfer of energy)