Across
- 3. when energy is passed in an ecosystem from one trophic level to the next, only ten percent of the energy will be passed on
- 4. the rivalry between or among living things for territory, resources, goods, mates, etc
- 7. graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem
- 10. the total mass of organisms in a given area or volume
- 11. number of people, other living organisms, or crops that a region can support without environmental degradation
- 14. position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans
- 15. anything that constrains a population's size and slows or stops it from growing
- 17. the range of different inherited traits within a species
- 18. the variety of life in the world or in a particular habitat or ecosystem
- 20. non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems
Down
- 1. an animal that naturally preys on others
- 2. sustainable habitat of interdependent animals, plants, and microorganisms and their environment
- 5. describes the changes in energy (a state function) that occur between organisms within an ecosystem
- 6. introduced organism that becomes overpopulated and harms its new environment
- 8. organisms that make their own food
- 9. the natural home or environment of an animal, plant, or other organism
- 12. organisms that need to eat (i.e. consume) food to obtain their energy
- 13. a living organism that shapes its environment
- 16. natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community
- 19. an animal that is hunted and killed by another for food