Science

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Across
  1. 1. feeding relationships in which one organism captures and feeds another Species- group of organisms so similar that they can breed and produce fertile offspring Symbiosis- Any relationship between 2 organisms that live very closely with one another
  2. 2. the total amount of living tissue within a given trophic level
  3. 4. Exclusion Principle- states that no 2 organisms can occupy the same niche in the same habitat at the same time
  4. 7. All the organisms that live in a particular area and their nonliving environment
  5. 9. organism that obtains energy by eating plants and animals
  6. 12. organism that relies on other organisms for food
  7. 14. close relationship between 2 species in which both benefit
  8. 15. Factor- physical or nonliving factors that shape ecosystem
  9. 17. A collection of all the ecosystems and biomes present on earth
  10. 18. organisms that breaks down organic matter into its chemical components to be recycled and used again
  11. 21. organism that obtains energy by eating plants and animal remains or other dead matter
  12. 22. Level- A single step or stage in a food chain or ecological pyramid
  13. 23. the specific role a species fulfills in an ecosystem that encompasses all the physical and biological conditions and interactions of a species
Down
  1. 1. close relationship between 2 species in which 1 benefits and the other is harmed Population- group of individuals of the same species living in the same place at the same time
  2. 3. organism that uses energy from their environment to create their own food
  3. 5. Pyramid- Diagram that shows the relative amounts of biomass, energy, or number of individuals contained within each trophic level of a food chain Ecology- the study of interactions between organisms and their environment
  4. 6. organisms that obtains energy by eating only plants
  5. 8. Group of ecosystems with the same climate and similar dominant or climax communities
  6. 10. close relationship between 2 species in which 1 benefits and the other is not affected
  7. 11. Web- A collection of all the food chains in an ecosystem Habitat- the natural environment where an organism lives
  8. 13. Chain- series of steps that show a single pathway of matter and energy from producer to top consumer
  9. 16. group of populations that live together at the same place at the same time
  10. 19. organism that obtains energy by eating animals
  11. 20. Factors- the biological influences of living factors that impact an organism within an ecosystem