Download Unit 2 study guide

Unit 2 study guide
1. The hydrologic cycle is the movement of
2. Large ecological regions with characteristic types of natural vegetation and distinctive animals are called
3. A community and its non-living environment is called a(n)
4. Complex feeding patterns for consumers in an ecosystem are called
5. In the nitrogen cycle, bacteria convert NH3 and NH4+ into NO2- and NO3+ then into N2 and N2O(nitrous oxide) it is
called
6. Much of the earth's sulfur is stored in
7. The typical percentage of loss of energy in transfers from one trophic level to the next is about
8. The rate at which an ecosystem's producers convert solar energy into chemical energy as biomass is called
____________________.
9. The net primary productivity of an ecosystem is 1 kg C/m2/year, and the energy needed by the producers for their own
respiration is 1.5 kg C/m2/year. The gross primary productivity of such an ecosystem would be
10. The major limiting plant nutrient is
11. This is the place where a population or an individual organism normally lives.
12. What are parts of the phosphorous cycle? (where do you find phosphorous?)
13. If grass stores 1,000 energy units received from the sun, the ecological efficiency of the ecosystem is 10%, and the
trophic levels are grass  cow  human, how many units of energy does the human receive of the original 1,000 units?
14. Organisms that complete the final breakdown and recycling of organic materials from the remains of all organisms are
the
15. name the types of consumers
16. In the nitrogen cycle, when decomposers break down complex organic molecules into NH3 and NH4+, it is called
17. Carbon is a major component of
18. Scientists estimate humans now use, waste, or destroy what percentage of the earth's total potential NPP?
19. Nitrogen is a major component of all of the following except
20. High quality energy is constantly
21. What “sphere’s” are part of the Earth’s life support system?
22. Life on earth depends on interaction of gravity, the cycling of matter, and
23. All physical forms of water (solid, liquid, and gas) make up the
24. Ecology is the study of
25. How do humans alter the water cycle?
26. know what a proper food chain looks like
27. This is the total of all the different species that live in a certain area.
28. What are examples of abiotic limiting factor
29. Aerobic respiration requires
30. What are ways humans intervene in the nitrogen cycle?
31. The form of nitrogen most usable to plants is
32. These are the parts of the earth's air, water, and soil where organisms are found.
33. Organisms that feed only on plants are called
34. In the nitrogen cycle, when specialized bacteria in soil and aquatic environments combine gaseous N2 with hydrogen
to make ammonia(NH3)
35. What are the major parts of the water cycle?
36. The most important factor in determining which biome is found in a particular area is
37. Each trophic level in a food chain or food web contains a certain amount of organic matter, called
38. The hydrologic cycle is driven primarily by
39. Precipitation can take several paths when it reaches the earth's surface. What are they?
40. Which of the following is a primary link between photosynthesis and aerobic respiration?
41. These are the smallest and most fundamental structural and functional units of life.
42. In a range of tolerance, each population has a point beyond which no member of the population can live. This area
beyond the ability to tolerate the conditions is called the