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klokot
on FreezingBlue Flashcards.
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WHAT IS A WETLAND?
usually a low lying area of soft waterlogged ground and standing water
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WHAT IS A MARSH?
a wetland dominated by herbacious plants
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WHAT IS A SWAMP?
a low land region saturated with water
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HOW DO YOU DETERMINE IF ITS A SWAMP OR NOT?
by the type of vegatation that is found there
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WHAT IS A PERENNIAL STREAM?
it means it flows all year round
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WHAT IS AN INTERMITTENT STREAM?
it means it flows during part of the year
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WHAT IS A EPHEMERAL STREAM?
it means it flows even less than a intermittent stream, usually after a snow melt etc.
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WHAT IS A MACROPHYTE?
a macroscopic plant (visible to the naked eye)
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WHAT DOES EMERGENT MEAN?
it means it grows above and out of the water
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WHAT DOES SUBMERGENT MEAN?
it means below the surface of the water
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WHAT DOES THE TERM FLOATING LEAF MEAN?
it means on top of wetland
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WHAT IS LENTIC?
still water environment
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WHAT IS LOTIC?
moving water environment
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WHAT DOES "DO" STAND FOR AND MEAN?
dissolved oxygen, and its the amount of oxygen dissolved in a body of water
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WHAT DOES THE WORD AEROBIC MEAN?
it has oxygen
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WHAT DOES THE WORD ANAEROBIC MEAN?
deprived oxygen also tends to smell bad
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WHAT DOES THE TERM "BOD" STAND FOR AND MEAN?
biochemical oxygen demand/ demand organisms put on environment by breaking down organic matter
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WHAT IS SUBSTRATE?
its the rocky cobbely bottom of the stream floor
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WHAT IS DETRITUS?
organic debris formed from the decay of organisms
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WHAT IS SURFACE TENSION?
a property of liquids caused by unbalanced molecular cohesive forces at surface, behaves like a thin elastic film
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WHAT IS A HEXAPOD?
a 6 legged arthropod which can tolerate low levels of DO
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WHAT IS A DECAPOD?
- any crustacean mostly in marine order having 10 legs
- Ex- crabs, lobsters etc.
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WHAT IS A ISOPOD?
- any crustacean characterized by a flattened body bearing 7 pairs of legs
- Ex- sow bugs
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WHAT DOES BENTHIC MEAN?
its unconsolidated organic material
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WHAT IS PHYTOPLANKTON?
- free floating aquatic plants
- Ex- algae
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WHAT IS ZOOPLANKTON?
- plankton that consists of animals
- Ex- coral, rotifers, jellyfish etc.
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