Plant Ecology

1. path that all water follows as it moves around Earth in different states
3. chemical reaction releasing energy from glucose
7. energy carrying molecule found in the cells of all living things
11. produces energy but doesn't require oxygen
14. the amount of carbon dioxide released into the air because of our energy needs.
17. moves molecules and ions from a higher to lower concentration without energy
18. has similar concentration of fluid, sugars and salt to blood
19. carbon atoms continously travel from atmosphere to Earth and back into the amosphere
20. converting light energy to chemical energy

2. moves molecules and ions from lower to higher concentration with the help of energy
4. happens when gases and liquids move from place to place in quick random motions
5. produces energy and requires oxygen
6. heating of Earth's climate system due to increased levels of greenhouse gases
8. when phosphorous travels from its source in rocks through different ecosystems to living organisms.
9. where part of a system's output is used as input for future operations
10. when chemical products move from areas of higher to lower concentration
12. has a lower concentration of fluid, sugars and salt than blood
13. main type of sugar in the blood
15. the cycle of nitrogen atoms through the living and non-living systems of Earth
16. has a higher concentration of fluid, sugars and salt than blood