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science
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26
Science
10th Grade
03/28/2011

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Term
virus
Definition
a segment of RNA or DNA surrounded by a protein coat.
Term
CAPSID
Definition
A PROTEIN COAT
Term
ENVELOPE
Definition
PROTECTS THE CAPSID
Term
HOST CELL
Definition
LIVING CELL
Term
CILIA
Definition
TINY,HAIRLIKE PROJECTIONS THA HELP ATTACH TO OTHER CELLS (ONLY IN BACTERIAL CELLS)
Term
FLAGELLA
Definition
LONG ,WHIP LIKE STRUCTURES THAT HELP MOVE(ONLY IN BACTERIAL CELLS)
Term
PATHOGENS
Definition
DISEASE CAUSING AGENT
Term
T-CELLS
Definition
FIGHT INFECTIONS (PART OF THE IMMUNE SYSTEM)
Term
evaporation
Definition
water changes from liquid to gas
Term
transpiration
Definition
evaporation of water from leaves to atmosphere
Term
precipitation
Definition
water returns to earth by rain,snow,etc(water moves IN)
Term
PERCOLATION
Definition
WATER SEEPS INTO SOIL (WATER MOVES IN)
Term
RESPIRATION
Definition
RETURNS CARBON TO ATMOSPHERE(BURNING)
Term
COMBUSTION
Definition
RETURNS CARBON TO ATMOSPHERE (BURNING)
Term
EROSION
Definition
RETURNS CARVON TO ATMOSPHERE (LIMESTONE IN SOIL UNDERGOES CHEMICAL CHANGE RELEASING IN C
Term
evolution
Definition
population change over time
Term
fossil
Definition
dead/preserved organism(direct evidence tha evolution takes place)
Term
homologous structure
Definition
different organisms may have same structures with different function
Term
vestigial structure
Definition
a structure tha seems to have no function
Term
adaptation
Definition
a species changes to be better suited for its environment
Term
extinction
Definition
when a species dies off
Term
population
Definition
same species living in the same area
Term
habitat
Definition
where population lives
Term
biotic factors
Definition
living factors(organisms)
Term
abiotic factors
Definition
nonliving factors (temperature,rain,ligth,soil nutrients)
Term
niche
Definition
all activities and conditions in with organisms live (NO 2 OCCUPY THE SAME NICHE)
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