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QUIET
BALL
UNIT 17-19 EXAM REVIEW 7 T H GRADE
CARBON DIOXIDE IS PRODUCED WHEN WHAT IS CHEMICALLY BROKEN DOWN?
BIOMASS
WHAT HAPPENS TO THE AMOUNT OF CARBON IN THE ENVIRONMENT DURING THE CARBON CYCLE?
The amount of carbon in the carbon cycle stays the same.
WHEN AN ORGANISM DIES, HOW DOES MOST OF THE CARBON FROM THE BODY
RETURN TO THE ENVIRONMENT?
Decomposers break the body down into simpler compounds.
WHY DOES A COMPOST PILE GIVE OFF STEAM
IN THE WINTER?
Stored chemical energy is being converted to thermal energy by the decomposition of biomass.
WHICH ORGANISMS BELONG TO THE SAME
FOOD CHAIN?
Leaves, grasshopper, frog, snake
Berries, squirrel, fox
Leaves, mouse, fox
HOW MANY
PRODUCERS ARE IN
THIS WEB?
Two, the leaves and the berries
HOW MANY TROPHIC
LEVELS ARE IN THIS FOOD
WEB?
Five
Autotrophs (plants), primary consumers (grasshopper, mouse, squirrel, rabbit), secondary consumers (frog, mouse, fox,) , tertiary consumers (owl, snake). Quaternary (owl).
WHAT TYPE OF ORGANISM IS NOT MENTIONED IN
THE FOOD CHAIN?
A Decomposer
WHAT WOULD HAPPEN IF THERE WERE AN INCREASE OF FROGS IN THIS FOOD WEB?
There would be less grasshoppers and more food available for the snakes and owls
WHY DO SOME PLANTS GROW VINES ALONG FENCES AND WOODS?
To get support from nearby objects
HOW DOES TURGOR PRESSURE HELP A PLANT?
The water provides support for the plant
HOW DO PLANTS RESPOND TO GRAVITY AND SUNLIGHT?
Roots grow down and leaves grow up.
WHY DOES THE PHOTOSYNTHESIS FORMULA HAVE THE WORD SUNLIGHT IN THE
EQUATION?
Photosynthesis can not happen without sunlight.
WHAT HAPPENS TO THE ENERGY ABSORBED BY PLANTS DURING PHOTOSYNTHESIS?
It is transformed into chemical energy.
WHICH ORGANISMS ARE RESPONSIBLE
FOR TRANSFORMING RADIANT ENERGY INTO CHEMICAL
ENERGY?
The leaves and the berries (or the producers, or the autotrophs)