Ecology Energy Matter

Edit Answers
12345678910111213141516171819202122232425262728293031323334
Across
  1. 4. an animal that only eats plants
  2. 6. a colorless odorless gas that humans breath out
  3. 7. a system completely isolated from it's environment
  4. 13. the rigid outer part of the earth that consists of the crust and upper mantle
  5. 15. the state of being subject to death
  6. 17. an organism that creates it's own food or energy
  7. 18. a community of living organisms in a certain area
  8. 19. a group of people living in the same place or having a certain characteristic in common
  9. 20. a person who purchases goods and services for personal use
  10. 21. convert waste into reusable material
  11. 23. breathing
  12. 27. the ratio of number of births to the size of the population
  13. 29. animal that eats meat
  14. 31. a model that shows flow of energy from one level to the next in an ecosystem
  15. 32. has all food chains in one ecosystem
  16. 34. a chemical element that is a gas with no color or taste, forms most of the Earth's atmosphere, it's part of all living things
Down
  1. 1. the total amount of water on a planet
  2. 2. organisms that break down dead organisms and release nutrients from the dead matter into the enviorment
  3. 3. something that does not live and breaths
  4. 5. area classified to the species that lives there
  5. 8. a living thing that can function on it's own
  6. 9. the max number of organisms of a species that can survive in that particular environment
  7. 10. with other systems by having inputs and outputs
  8. 11. a mixture of gas surrounding the earth
  9. 12. the process when plants change the sunlight's energy to energy that can be stored and used later
  10. 14. a system that
  11. 16. a number of people of things sharing a specific characteristic and following one after another
  12. 22. the study of the relationship between living organisms which include humans and the physical environment
  13. 24. an animal that eats plants and animals
  14. 25. colorless odorless gas that humans breath in
  15. 26. the action or influence of people, groups or things on one another
  16. 28. a particular section, group or type of people or animals living in an area or country
  17. 30. the part of the world where life exists
  18. 33. something that lives and breaths