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1A: Biodiversity,
1B: Niches
species, population,
& variation
100
I. Some species of sharks are large
predators with many rows of teeth
while others are small with only one
row of dull teeth
II. tadpoles are small black tear shaped
creatures that swim through water and
later develop into frogs that can leap
large distances while on land.
II
What two things make
up an organisms niche?
100
200
100
Same species
Live in same area
Lions and hyenas both hunt the same
foods in the African wilderness. This
is an example of
A Niche partitioning
B Interspecies competition
C A generalist and specialist in
the same ecosystem
200
300
When it comes to
biodiversity, differences
are called –variationsWhat are the 2 requirements
that make a group of
organisms a species?
As a bee the
pollinates
clusia flowers,
-Where
organism
it is covered with a sticky resin
lives
that contains a powerful antibiotic.
-What
an organism
does
This antibiotic
kills bacteria
in the
bee
hive.
This
association
of
a
(its roles)
1D: Role of
variation in
changing
conditions
C
bee and a clusia flower is an
example of
A. parasitism B. commensalism
C. mutualism D. heterotrophism
Which statement is referring to
variation within a species
What are the two
requirements that make
a group of organisms a
population?
1C: Dependencies among species
200
An organism that can eat a
Variations
variety of foods and is able to
live in a variety of environments
is a –generalist- and lives in
a – broad - niche
-Same structure
-Can reproduce with
each other
100
100
A species of small worm lives
B
in the intestine of a wart hog
and feeds off certain nutrients.
This doesn’t help the wart hog
but surprisingly it doesn’t hurt
the wart hog either as the wart
hogs intestines don’t even absorb
the nutrients that the worms
eat. What type of symbiosis is
this an example of?
100
Commensalism
2
200
200
I. An increase in the predator
population caused a decrease in the
prey population
II. The prey population steadily
decreased
III. The time cycle times of both
predator and prey are the same.
IV. The next low point for the
predator population will be in 2007
An organism that can to eat a
variety of foods and be able to
live in a variety of
environments is a –generalistand lives in a – broad - niche
200
Only III is true
Which statement(s) above are true?
300
400
I. Baby chimpanzees have less hair
than their parents
II. Some spiders have yellow spots
on their backs while others have
different colors or no spots at all
III. The desert frog can vary in size
and color
IV. The aurock was an aggressive
horned ancestor of domestic cow
Which of the above 2 statements are
most likely referring to variation
between different species
400
500
Biological diversity is
defined as the –numberand –variety- of species.
300
II and IV
300
400
Biological diversity is
Defined as the
–number- and –varietyof species
500
Dependencies among
species is called
-symbiosis-
1
The species that is MOST LIKELY a
specialist living in a narrow niche is
W
X
Y
Z
The species that is MOST LIKELY a
generalist (is the BEST example of a
generalist) is species
A
B
C
D
500
300
XDependencies among
species is called
-symbiosis-
400
Australia, dingo’s eat wombats
A -In
and possums.
300
Which of the following is true?
A. Variation within a species is good
only if the species is living in an
environment that is currently changing
B. Variation within a species is not
good in an environment that is
changing since some of the
individuals will not be well adapted
C. Variation in a species is good in a
changing environment and in an
environment that is not currently
changing
400
400
500
500
C
-Wombats graze on grasses
-Crickets eat grass
-Emu’s eat seeds and crickets
What would happen if a new predator
started eating a lot of the possums?
A. There would be more wombats
B. There would be less grass
C. There would be more crickets
D. There would be less emus
500
C