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Across 3. group of organisms similar to one another that can breed and produce fertile offspring 4. biggest volcanic eruption was on this island 7. area claimed by an individual or group of animals 9. the second of two groups of warm-blooded vertebrates 11. when species become ______, biodiversity and stability are reduced 12. this continent experienced severe drought in 1982 because of El Nino 14. the variety of species in an ecosystem 17. broken-down material is carried off 18. average human body needs to take in this many liters of water a day 22. animals that become dormant 23. these bodies of water were formed when glaciers retreated 24. how territorial animals mark their space 25. all the giraffes, zebras, elephants, water, dirt, sun, rocks are an example of this 29. there have been this many major ice ages 35. what happens to sea level when a glacier melts 36. this act was passed in 1973 to protect disappearing wildlife 39. these contain stored carbon, an example is coal 40. Earth's early atmosphere contained this gas, given off by volcanoes, not in our present day atm. 41. specific environment a species lives in 42. process plants use to make food 43. the size of an animal's territory is determined by the ____ of that animal 44. all the energy used by living things comes from the ____ 45. all the giraffes on a Savanna is an example of this

Down 1. the amount of ____ affects the characteristics of life found in an area 2. all the giraffes, zebras, and elephants on the Savanna is an example of this 3. layer of the atmosphere that contains the ozone 5. worms get their nutrients by ____ it directing into the cells of their body 6. animals may compete for territory until the _____ 8. breaking down of rocks by water, wind, ice 10. total area in which a species can live 13. these can be passed on from one organism to another, because they can be stored in the tissues and taken in as one eats the other 15. huge ice mass 16. life processes slow down 19. glaciers can contain bubbles of ___ that were trapped thousands of years ago 20. the month in which El Nino occurs 21. atmospheric gases capture and store heat from the sun and increase Earth's temperatrure 26. the coast of this continent experiences El Nino 27. lithosphere is made of these 28. this peninsula formed during the last ice age 30. Mount Pinatubo is found in this country 31. water quality is affected by the amount of dissolved ____ found in it 32. long periods of cooling when glaciers covered the Earth 33. all the substances that an organism requires from food 34. this river flooded in 1993 and caused billions of dollars of damage 37. one of two groups of warm-blooded vertebrates 38. El Nino of 1982 caused the drop of this fish industry in Peru