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22 Cards in this Set

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mitochondria
cell organelles where cellular respiration takes place.
wavelength(compressional wave)
the distance from the centers of rarefractions or compressions.
refraction
bending of a wave as it move from one medium into another medium.
organelle
specialized cell parts that preform a cells activities
dichotomus key
using physical properties to identify something. exp. crabs
cilia
a short threadlike structure that extends from the cell membrain.
vascular
plant with tubelike structures that move minerals, water, and other substances throughout the plant.
endoskeleton
a protective skeleton on the inside.
scientific law
a rule that describes a pattern in nature but does not try to explain why something happens.
endotherm
warm-blooded animal whose body temerature does not change with its surrounding enviornment.
ectotherm
cold blooded animal whose body temperature changes with the temperature of its surroundings.
air mass
large body of air that has the same chareteristics of temperature and moisture content as the part of Earths surface.
estivate
a period of inactivity duringhot, dry weather in amphibians, involves moving to cooler, more humid areas underground
nonvascular
plant that absorbs water and other substances directly through its cell walls instead of through tubelike structures.
weather
state of atmosphere at a specific time and place
mineral
inorganic, solid material found in nature dthat always has the same chemical makeup

fracture, color, hardness, streak, and luster
hypothesis
reasonable guess that can be tested and is based on what is known and what is observed.
amplitude
for a transverse wave 1/2 the distance between a crest and a trough.
chloroplast
green organelle in a plants leaf cells where most photosenthesis takes place.
aerobe
organism that uses oygen for respiration.
Endospore
a dormant of a bacterium surrounded by a thick wall; formed when enviornmental conditions are unfavorable.
anerobe
organism that can live without oxygen.