Across
- 2. after this, the population of the country rapidly increased
- 5. multiple populations living in the same ecosystem
- 7. where freshwater and saltwater meet
- 8. how much organic matter there is
- 12. the study of human populations
- 15. these kinds of organisms can make their own food
- 17. a pathogen often spread through water supplies
- 20. these kinds of organisms cannot make their own food
- 21. the over prescription of antibiotics has helped result in Methicillin ______________ Staphylococcus Aureus
- 22. these factors in an ecosystem would NOT be things like plants or animals or fungus
- 24. the study of living things and their nonliving environment
- 28. how many different living organsisms there are
- 29. some bacteria and certain kind of plankton can do this
- 30. a compound composed of 3 oxygen atoms
Down
- 1. how a population tends to be organized in an area
- 3. distance from the north pole or south pole
- 4. a cold biome with evergreen trees
- 6. this is all of the water on earth
- 9. liquid stone
- 10. this doesn't happen at the bottom of the ocean
- 11. This part of the earth consists of the crust and mantle
- 13. a ___________ species is crucial to an ecosystem
- 14. the act of magma cycling upwards in the mantle and then back down as it cools
- 16. a beneficial trait for a species
- 18. these can slip, causing seismic events like earthquakes
- 19. this type of relationship is where one organism is unaffected and the other is helped
- 23. Orcas whales and leopard seals would be an example of __________________ relationship
- 25. nitrogen and phosphorous are key components of this
- 26. a resource that can be replenished faster than it is used up
- 27. air is _________ closer to the surface of the earth