Across
- 3. _____ factor is a living organism that shapes its environment
- 5. the diet of these organisms is made up of decaying organic material
- 7. species _____ is the number of different species in a community
- 10. dead material produced by organisms on all trophic levels
- 11. _____ abundance is the proportional representation of a species in a community
- 12. _____ succession occurs when disturbed areas are colonized by a variety of species which are gradually replaced by a succession of other species
- 13. _____ structure is a pattern of feeding relationships consisting of several different levels
- 16. secrete enzymes that digest molecules in organic forms into inorganic forms
- 17. _____ succession occurs where a disturbance has cleared away an existing community but leaves soil
- 18. _____ consumers are the top level of the trophic structure
- 20. _____ consumers include mostly herbivores
- 21. organisms that produce their own sources of energy
- 22. species _____ is defined by species richness and relative abundance
Down
- 1. _____ species is a species whose impact is larger on its community relative to its abundance
- 2. a network of interconnecting food chains that shows what animals eat in an ecosystem
- 4. organisms that rely on other organisms as a source of energy
- 5. events that damage biological communities and alter the availability of resources
- 6. _____ species is a non-native species that spreads beyond the point of introduction and causes environmental/ecological damage
- 8. biological _____ is the intentional release of a natural enemy to attack a pest population
- 9. linear network that connects organisms based on what they eat
- 14. these organisms feast on detritus
- 15. _____ succession is when ecological succession begins in a virtually lifeless area with no soil
- 17. _____ consumers include mostly small mammals
- 19. _____ consumers get their energy from secondary consumers