35. What environment is characterized by high nutrient inputs and by relatively great fluctuations in salinity and temperature?
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22. A linear depiction of energy flow in an ecosystem is a?
22. A linear depiction of energy flow in an ecosystem is a?
26. Transpiration is most closely associated with:
26. Transpiration is most closely associated with:
50. Stratospheric ozone is important because it:
50. Stratospheric ozone is important because it:
37. The most productive region of a lake is the ____ zone.
37. The most productive region of a lake is the ____ zone.
29. The primary reason that Earth experiences seasons is be…
29. The primary reason that Earth experiences seasons is because of the:
44. Today, the major danger to species is:
44. Today, the major danger to species is:
13. Habitat is best described as:
13. Habitat is best described as:
41. Building roads, parking lots, building and bridges all…
41. Building roads, parking lots, building and bridges all contribute to:
21. Approximately what proportion of the radiant energy ent…
21. Approximately what proportion of the radiant energy entering an ecosystem is used in photosynthesis?