Name: _________________________
Chapter 3 Vocabulary
The Biosphere
Directions. Use Google to thoroughly define these words. Be sure to choose the biological
definition when necessary.
1. Biosphere
2. Ecology
3. Biotic factor
4. Abiotic factor
5. Primary producer
6. Photosynthesis
7. Chemosynthesis
8. Carnivore
9. Herbivore
10. Scavenger
11. Decomposer
12. Omnivore
13. Detritivore
14. Food chain
15. Food web
16. Trophic level
17. Ecological pyramid
18. Nitrogen fixation
19. Denitrification
20. Limiting nutrient