Environmental Science - Variety 1

2. several food chains joined together
4. - sphere for living things
6. an educated guess
8. step in the water cycle where waters becomes water vapor
9. step in nitrogen cycle where NO2 becomes NO3
14. lving things that makes its own food e.g. plant
15. the variety of living things
17. process by which plants make food using light energy
20. when all members of a species dies
21. organisms that can interbreed and produce fertile offspring are call this
22. fossil fuels are considered this type of energy
24. ultimate energy source
25. plants store energy as this compound
27. garbage in places it is not supposed to be
28. animal that attacks prey or other animal

1. a trait that helps an organism to better survive
3. animals that eat plants
5. the relationship between organisms where both benefit
7. rain, snow, hail
10. taking more organisms for food than is needed
11. a way to remember the 5 biggest threats to biodiversity
12. chopping down too many trees in one area
13. the number one reason for decrease in biodiversity caused by humans
16. bacteria and fungi that cause decay
18. a non-native species - may or maynot cause harm
19. when a natural resource can replenish itself for the long term we say it is...
23. animals that eat both plants and animals
26. non-living