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Apolgia Marine Bio- Module 9
vocab words
29
Biology
11th Grade
02/01/2012

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Term
Intertidal Zone
Definition
The area of shoreline between high and low tides
Term
Substrate
Definition
The bottom surface of a marine habitat
Term
Epifauna
Definition
Benthic animals that move about the surface of the sea bottom , or are firmly attached to it.
Term
Sessile
Definition
A member of the epifauna that lives attached to a substrate.
Term
Desiccated
Definition
A term referring to an organism that has lost its body moisture.
Term
Vertical zonation
Definition
Noticeable bands of organisms living within a certain range in the intertidal zone.
Term
Ecological Succession
Definition
A gradually increasing occupation of new organisms into a specific area.
Term
Infauna
Definition
Organisms that live under the sediment of an ecosystem.
Term
Climax Community
Definition
When a dominant species that moves into an area and becomes established for an extended period of time
Term
Intertidal zone referred to as?
Definition
Littoral zone
Term
Water
Definition
Limiting resource of upper intertidal zone
Term
Space and light
Definition
Limiting resources- lower intertidal
Term
Space
Definition
Limiting resource- middle
Term
Lower intertidal
Definition
Most diversity in marine life
Term
Biotic factors
Definition
Predation, food, competition for space
Term
Abiotic Factors
Definition
Salinity, available space, moisture
Term
Indicator group
Definition
Organisms that are predictable, such as barnacles, muscles
Term
Bysal threads
Definition
Used to hold on or anchor sessile organisms
Term
Organisms prevent desiccation
Definition
by sealing in moisture- T
Term
Anaerobic bacteria
Definition
one of the few organisms that inhabits mud- T
Term
Wave action
Definition
benefits and harms organisms- T
Term
Rock and Mud
Definition
Two intertidal substrates- T
Term
Mud allows water to move more quickly
Definition
bc small particles, closer together- F
Term
Middle intertidal
Definition
has greater diversity of life- F
Term
Zonation
Definition
not noticable in muddy intertidal- T
Term
A wider band of mussels
Definition
exists without seastars- T
Term
Waves
Definition
benefit organisms- T
Term
Hot summer days
Definition
do not affect temperature of water- F
Term
Predation and competition
Definition
open up space- T
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