biology

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