CHOOSE THE CORRECT OPTION
Nitrogen fixation
A ) IS DONE
ONLY BY PLANTS
B) IS DONE
MOSTLY BY BACTERIAS.
C) IS HOW
ANIMALS MAKE PROTEINTS.
D) IS A FORM
OF DECOMPOSITION.
An área where a glacier has just melted away will begin the
process of
A)
PRIMARY SUCCESSION
B)
SECONDARY SUCCESSION .
C)
STABILITY
D)
REGROWTH
The pioneer species on bare rock are usually.
A)
FERNS
B)
PINE TREES
C)
MOSSES
D)
LINCHES.
Clouds form in the atosphere
trough the process of
A)
PRECIPITATION
B)
RESPIRATION
C)
CONDENSATION
D)
DECOMPOSITION
One of the most common plants in a recently abandoned farm
fields is
A)
OAK OR MAPLE TREES
B)
PINE TREES
C)
MOSSES
D)
CRABGRASS
THESE ARE THE PHASES OF THE PRIMARY SUCCESSION GIVE NUMBERS PER EACH
DEFINITION.
After hunddres ore ven thousands of years, the soil may be deep and
stable enought to support a forest PHASE
NUMBER __________________ .
Most primary succession begins with linchens acids from the linches begin
breaking the rocks into small particles. These particles mix with the remains
of dead linches to start forming soil. Linchens are an example of the pioneer species.
PHASE NUMBER _____________________
A slowly retreating a glacier exposes bare rock where nothing lives, and
primary succession begins. PHASE NUMBER
_________________________
Over time , the soil deepends, and the mosses are replaced by ferns. The
ferns ma slowly be replaced by grasses and wildflowers . if there is enough
soil, shrubs and small tres
May grow . PHASE NUMBER
_____________
After
many years, there is enough soil for mosses to grow. The mosses eventually
replace
The
linchens. Insects and other tiny organisms begin to the live there. When they
die,
Their
remains add to the soil. PHASE NUMBER
___________________
GIVE THE
NEXT DEFINITIONS.
SUCCESSION __________________________________________________________
PIONEER
SPECIES _______________________________________________________
COMBUSTION __________________________________________________________
DECOMPOSITION
_______________________________________________________
MATURE COMMUNITIES
_________________________________________________
BIODIVERSITY __________________________________________________________
EXPLAIN THE ORIGIN AND THE PHASES OF THE SECOND SUCCESSION
LIST FOUR PLACES WHERE WATER CAN
GO AFTER IT FALLS AS PRECIPITATION.
1
2
3
4
IN WHAT
FORMS CAN WATER ON EARTH BE FOUND?
WHAT ROLE
DO ANIMALS HAVE IN THE CARBON CYCLE?
WHAT
ROLES DO HUMANS HAVE IN CARBON CYCLE ?
WHAT ARE
THE FACTS THAT STARTS THE SECOND SUCCESSION?
WHAT IS
THE PERCENT OF NITROGEN ?
WHAT IS PHOTOSYNTHESIS?
________________________________________________________________________________
