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15 Cards in this Set

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How do you write a proper hypothesis?
IF...(independent variable)...
THEN..(Dependent variable prediction)
Active Transport
Requires energy to work against diffusion.
Multicellular organism
made of many cells,the individual cells have specialized jobs.
Osmosis
The diffusion of water through
a cell membrane.
Dependent Variable
What you measure (try to find out) during an experiment.
Passive transport
Movement of molecules in the flow of diffusion. Requires no additional energy.
Equilibrium
When a balance is achieved.
Shape of cells
Help with job (ie Red blood cells are small and smooth, muscle cells long and thin, white blood cells can engulf).
Metabolism
Sum of all chemical activities.
Unicellular
Made of 1 cell. It can perform all of life's functions independently.
Respiration
Provides you with energy needed for life's functions.
Levels of organization
cells-tissues-organ-
organ system-organism
6 characteristics of living things
-made of cells -Have DNA
-Grow and develope -Reproduce
-Respond to stimuli
-Use energy
4 needs of living things
water, food, shelter, air
Photosynthesis
Producers use this to make glucose (oxygen also produced).