Across
- 2. refers to the rivalry between or among living things for territory, resources, goods, mates, etc.
- 4. the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms
- 6. organism that breaks down dead organic material
- 9. an organism that feeds on dead and decomposing organic matter
- 10. is an inner sense of rightness about our behavior and the behavior of others.
- 11. is when two organisms of different species "work together," each benefiting from the relationship
- 12. a graphical representation of the energy found within the trophic levels of an ecosystem.
- 16. an animal that feeds on flesh
- 17. a relation between two kinds of organisms in which one obtains food or other benefits from the other without damaging or benefiting it.
- 19. animals establish a home in a habitat because it has resources it can utilize or because the habitat is ideal for them.
- 20. dying out of a species
- 21. is also known as a birth rate
Down
- 1. the producers in the food chain, meaning they create their own nutrients and energy
- 3. a community or group of living organisms that live in and interact with each other in a specific environment
- 5. the natural home or environment of an animal, plant, or other organism
- 7. is the biological process by which chemical energy is converted into carbohydrates for the organism's food.
- 8. Anything that occupies space and has mass
- 13. An herbivore is an organism that mostly feeds on plants
- 14. an increase in the concentration of a chemical in a biological organism over time, compared to the chemical's concentration in the environment.
- 15. the relocation or process of people leaving one country to reside in another
- 17. is defined as a group of actually or potentially interacting species living in the same place.
- 18. species