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Austin Thomas- Chapter 11 vocab
chapter 11
31
Biology
12th Grade
03/05/2012

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Term
community
Definition
All the different populations of organisms that live in a defined area
Term
habitat
Definition
the natural enviornment where an organism lives
Term
active continental margin
Definition
one that is colliding with another plate and therefore has a lot of geoligical activity
Term
mantle
Definition
one of the three main internal layers of the earth. The mantle lies under the crust, the outermost layer, and over the core, the intermost layer
Term
Passive continental margin
Definition
one that is on hte "trailing edge" of a continent and has little geological activity
Term
spring tides
Definition
tides with a large range that occur around times of the full or new moon
Term
neap tides
Definition
tides with a small range that occur when the moon is in quarter
Term
tidal range
Definition
the difference in height between a high tide and the next low tide
Term
radula
Definition
a rasping ribbon of small teeth that is present in most molluscs
Term
chitons
Definition
molluscs whose shells consist of eight overlapping plates on their upper, or dorsal, surface
Term
heat capacity
Definition
the amount of heat energy required to raise the temperature of a substance; also, its ability to hold heat. water has one of the highest capacities of any natural substance
Term
deposit feeders
Definition
aniamls that eat organic matter that settles to the bottom
Term
filter feeders
Definition
animals that acively filter food particles from the water. They are a common type of suspension feeder
Term
detritus
Definition
particles of dead organic matter
Term
holdfast
Definition
a structure used by many seaweeds to anchor themselves to the bottom
Term
swim bladder
Definition
a gas-filled sac that provides many bony fishes with buoyancy
Term
photoysnthesis
Definition
CO2+H2O+Sun Energy -----> organic matter +O2
Term
Limiting resource
Definition
A resource that is so scarce that is restricts the growth of a population
Term
Lichens
Definition
close, mutualistic associations between fungi and microscopic algae; mutualism is a type of symbiosis
Term
nitrogren fixation
Definition
conversion of nitrogen gas (N2) into nitrogen compounds that can b used by primary producers as nutrients
Term
primary producers
Definition
organisms that manufacture organic matter from CO2, usually by photosynthesis
Term
semidiurnal tide
Definition
a tidal pattern with two high and two low tides each day
Term
diurnal tide
Definition
a tidal pattern with one high and one low tide each day
Term
Mixed tide
Definition
A tidal pattern in which two successive high tides are of different heights
Term
competitive exclusion
Definition
the eliminatin of one species by another as a result of competition
Term
subtidal zone
Definition
the part of the continental shelf that is never exposed by low tide
Term
coralline algae
Definition
red algae that depsosit calcium carbonate in their tissues
Term
respiration
Definition
organic matter + O2 ------> CO2+H20+ energy (glucose)
Term
Hemoglobin
Definition
Red Protein in the blood of vertebrates and some invertebrates that transports oxygen
Term
Plankton
Definition
primary prodcers (phtyoplankton) and consumers (zooplankon) that drift with the currents
Term
diatoms
Definition
single-celled algae with a shell, or test, made of silica
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