Slide 2 7 th Grade Science Organisms Adaptations and their
Ecosystems Slide 3 A:B: biosphereecosystem #1 A unit consisting of
all the living and nonliving things in a given area that interact
with one another. C:D: communitypopulation Slide 4 B. ecosystem
Slide 5 A:B: abioticecology C:D: ecosystembiotic #2 Living things
in an ecosystem. Slide 6 D. Biotic Slide 7 A:B: abioticbiotic C:D:
ecologyecosystem #3 Non-living things in an ecosystem. Slide 8 A.
Abiotic Slide 9 A:B: Primary successionSecondary succession C:D:
BothNeither #4 *Volcanic eruptions breaking the surface of the
ocean. *Lichens move in on an area of bare rock. These are examples
of ________ _________. Slide 10 A. Primary succession Slide 11 A:B:
Primary successionSecondary succession C:D: BothNeither #5 *Farmer
plows a field and leaves it unattended. *Hurricane destroys a
Coastline. *Forest re-grows after a forest fire. These are examples
of ________ _________. Slide 12 B. Secondary succession Slide 13
#6#6 Lichens grow on bare rock. Lichens break down the rock with a
mild acid. A thin layer of soil is formed. Grasses begin to grow on
the soil. Decaying organic matter forms a thicker layer of soil.
Small shrubs begin to grow. Trees with deeper roots grow in the
deeper layer of soil. A forest is formed. This process is an
example of _______ ________. A.Primary succession B.Secondary
succession Slide 14 A. Primary succession Slide 15 A:B: Primary
begins on bare rock. Secondary begins when soil is already present.
Secondary begins on bare rock. Primary begins when soil is already
present. C:D: BothNeither #7 What is the major difference between
primary and secondary succession? Slide 16 A. Primary begins on
bare rock. Secondary begins when soil is already present. Slide 17
A:B: The area would re- grow starting with lichen The area would
re-grow starting with grasses- trees-forest C:D: The area would
never re-grow None of these #8 How would secondary succession
affect an area that was destroyed by a hurricane? Slide 18 B. The
area would re- grow starting with grasses-trees-forest Slide 19
A:B: Primary community Succession community C:D: Climax
communityNone of these #9 An ecosystem that is in balance. Slide 20
C. Climax Community Slide 21 A:B: Increase temperatures Lower
temperatures C:D: Slow the rate of plant growth B and C #10 How
might a cloud of ash from a volcanic eruption that blocks out the
sun effect ecosystems? Slide 22 B.Lower temperatures C.Slow the
rate of plant growth Slide 23 A:B: It increases the number of types
of species It prevents other species from arriving. C:D: It slows
the rate of plant growth B and C #11 *Ecological succession helps
to maintain equilibrium in an ecosystem. How would secondary
succession help to restore equilibrium after a flood? Slide 24 A.
It increases the number of types of species Slide 25 A:B:
Behavioral adaptation Structural adaptation C:D: Climax
adaptationNone of these #12 An adaptation of an organisms body.
Slide 26 B. Structural adaptation Slide 27 A:B: Behavioral
adaptation Structural adaptation C:D: Climax adaptationNone of
these #13 An adaptation of actions that organisms develop to
survive. Slide 28 A. Behavioral adaptation Slide 29 A:B: Too much
grass A drought C:D: BothNeither #14 African wildebeests migrate
across grass lands. What might cause them to migrate farther than
normal? Slide 30 B. A drought Slide 31 A:B: It will survive anyway
It might become extinct C:D: BothNeither #15 What might happen if
an organism is unable to adapt to its ecosystem? Slide 32 B. It
might become extinct Slide 33 These are examples of _____ _____. A.
Structural adaptation B. Behavioral adaptation #16 A camels hump A
giraffes long neck A monkeys opposable thumbsBisons hooves Slide 34
A. Structural adaptation Slide 35 These are examples of _____
_____. A. Structural adaptation B. Behavioral adaptation #17 Fish
swimming in a school Wildebeest traveling in herds Monarch
butterflies migrating to MexicoSkunks active at night Slide 36 B.
Behavioral adaptations Slide 37 A: B:: The meadow and pond have
different ecosystems and overlapping ecosystems The Meadow and pond
have only one ecosystem with fewer overlapping ecosystems C: D:
Both None of these #18 You would find the most animal diversity in
a meadow with a pond compared to a just a meadow. Why? Slide 38 A.
The meadow and pond have different ecosystems and overlapping
ecosystems Slide 39 A:B: Adapting to their environment is not
important They must adapt to their environment C:D: BothNeither #19
What causes animals to be diverse or different from each other?
Slide 40 B. They must adapt to their environment Slide 41 A:B: the
nonnative animal has several natural enemies the nonnative animal
has no natural enemies C:D: the nonnative animal can learn to
behave like the native animals Neither #20 *A nonnative animal is
introduced into a mature ecosystem. *The animal will increase in
the new community if ____. Slide 42 B. the nonnative animal has no
natural enemies. Slide 43 A:B: They decrease They increase C:D:
Both Neither #21 *The weeds in this picture thrive and are able to
take over the yard because it has no natural enemies. *What happens
to the native plant species in this ecosystem? Slide 44 A. They
decrease Slide 45 A:B: Move to a different ecosystem Eat different
food sources C:D: They would die None #22 In order for an ecosystem
with high biodiversity to recover, what would organisms need to do
if one food source became unavailable? Ex: In the left picture, the
snakes begin to die from a disease. Slide 46 B. Eat different food
sources Slide 47 #23 Look at the graph. The population of rabbits
decreased greatly between points A and B on the graph. Explain why
this change occurred. A disease, limited resources, or some other
limiting factor caused the rabbit population to decrease to
decrease. Slide 48 Great Job!!!! Great Job!!!! Thank you for
playing! Thank you for playing!
