Unit 4: Energy thru Ecosystems

2. (2 words) to label the step in the pyramid
5. without them there would be no life
6. all the reactions that include using energy
11. the vegetarian in the group
13. not a producer
14. an organism that cannot make sugar themselves
15. a sometimes over-complicated model of energy flow throughout an ecosystem
17. t he ultimate source of energy...although unusable for most
18. organisms that make their own sugar out of air and water
20. symbols that show directional energy flow

1. a pyramid that shows how many individuals are needed to support the next trophic level
3. I eat all life forms
4. meat-eating only
7. "the top dog" (or Lion)
8. the process of producers, what they do
9. the form of energy "lost"
10. a fungus, an earthworm, and a bacteria cell walk into a bar...
12. this has a one-way ticket through the trophic levels
16. dried tissue amount
19. the percent that gets passed to the next level