What organisms are the most numerous in soils?
-:- Bacteria
What organisms have the greatest biomass?
-:- Fungi
What is the difference between aerobic and anaerobic heterotrophs?
-:- Aerobic use oxygen as electron acceptors. Anaerobic use nitrogen, sulfur, ironto
accept electrons.
How do...
✓ -:- Decomp is slowed, because anaerobic respiration is slower and produces less
energy
How did the Everglades get high levels of organic materials build up?
✓ -:- The Everglades is historically flooded, so organic matter decomp is slowed when
is submerged in water and not in oxygen. Then the input of new OM exceeds losses
and leads to a vast amount of organic matter accumulation.
How do the basics of the historical flow regime in the Everglades compared to today?
✓ -:- Historically the Everglades started at the Kissimmee Basin and a floodplain river
pushed water into Lake Okeechobbee. The water then went down south until it
reached the area around the keys. Today much of the Everglades has been drained
and levees and canals push water from Okeechobee east out into the Atlantic.
Where is EAA and what is it?
✓ -:- Everglades Agricultural Area, which is mainly devoted to sugarcane with smaller
areas used for vegetables, sod, citrus, and rice. It is the area southeast of Lake
Okeechobe
2|Page | Grade A+| 2024/2025
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