unit 2
why do organisms need to survive?
Movement, reproducing, digestion, blinking/focusing, breathing, sphincters
what is a biosphere?
parts of earth where life exists,
how many direction does engery flows into
ONE
what is the 1st law of therodynamics
energy is not created nor destroyed
what is the 2nd law of therodynamics
when energy changes forms, it loses energy as heat.
energy needs to be replenished by the..
sun
how much energy % do plants take in from the sun
1%
what is albedo
amount of ennergy reflected
what do autotrophs/ producers do
photosynthesis
what happens when theres no sun
chemosynthesis
how is stored energy is released
cellular respiration
what is the rule of 10?
after the plant, only 10% of eneger is transfered to the next trophic level
what does the pyramind of numbers require
numbers
what does the pyramid of biomass require
mass (g, kg)
what does the pyramid of energy require?
energy(J)
which pyramid could be upright and downward?
numbers and biomass
why can't the pryamid of energy be downward?
2nd law of therodynamics!!
what is homostasis
maintaing balance
what is biotic
living things
what is abiotic
non-living things
what is water
it is polar and the universal solvent