UNIT 5 EXAM REVIEW
7 TH G R A D E
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)