Transcript ecology 3 week assessment review

Monday 2/9/15
Get out your study guides!!!
Turn in your Unit 7 Warm-ups
(you should have SEVEN)
UNIT 6 & 7 REVIEW
Which
species is the
most closely
related to the
sea lion?
seals
Which two
species share
the least
characteristics?
A. raccoons
and weasels
Otters & Felids
B. otters and
Felids
Which animals have hair?
leopard
Which animals have a vertebral
column?
Lamprey, tuna, salamander, turtle &
leopard
2o
3o
3o
3o
4o
2o
2o
1o
3o
3o
2o
3o
2o
1o
P
2o
P
Which organism(s) can be both a
2nd & 3rd level consumer?
Coyote, Hawk, Roadrunner
7
Which organism would be on the
bottom of the energy pyramid?
Grass & cactus
In the nitrogen cycle, what
organisms that live in soil and on
roots fix or make usable by plants
the greatest amount of nitrogen?
Bacteria fix the most
nitrogen.
Are bacteria biotic or abiotic?
Biotic (living)
What would happen if decomposers
like earthworms or microorganisms
were removed from an ecosystem?
The cycle will be disrupted and
slowed
If a bee eats nectar from flowers and
pollinates the flowers at the same
time, what type of relationship would
it be?
Mutualism, they
both get something
good.
How is a tick feeding on a
dog considered to be
parasitic?
The tick takes away nutrients from
the dog.
Write in the percentage of
energy at each level in the
food chain.
Grass
Grasshopper
Bird
Snake
100%
10%
1%
.1%
What would happen if the bird
population increased?
Grass
Grasshopper
Bird
The grasshoppers would
decrease and the grass and
snakes would increase
Snake
What is the role of the bird?
1o Consumer
Grass
Producer
Grasshopper
3o Consumer
Bird
2o Consumer
Snake
Which level provides the most energy?
Wolf
Raccoon
Grasshopper
Grass
3rd Consumer
2nd Consumer
1st Consumer
Producers
If there are 50 kilocalories of energy at
the tertiary consumer level in a
habitat, how many kilocalories would
be at the producer level?
50 tertiary
500 secondary
5,000 primary
50,000 producer
How much energy is passed to
the next level?
10%
What happens to the other 90%?
Used by the organisms at that level &
given off as heat
How does species diversity
change over time as a
result of succession?
Diversity INCREASES
Which taxon is
more specific?
Family
species
class
genus
species
What is the difference
between primary &
secondary succession?
Primary succession begins
with pioneer species
(lichens) & occurs on
barren, uninhabited land.
Describe the order of how
primary succession would
occur.
Barren land
Lichens & mosses appear
Grasses & small plants appear
Small trees appear
What is the benefit of having a
classification system?
Common understanding of
how to classify & name
organisms
If an organism has genes that
improve their ability to survive &
reproduce, then what will most
likely increase?
The frequency of genes in the
population
Why does a pesticide used to kill
insects lose its effectiveness over
time?
Insects become resistant to the
pesticide & the frequency of that
allele increase
Why is overfishing
detrimental to the
overgrowth of plant life?
Reduces the number of
organisms that feed on the
producers.
If a native species & a non-native
species are competitors for
resources, why is the non-native
species more likely to survive
than the native species?.
The non-native species
doesn’t have any natural
predators in the ecosystem
In a particular ecosystem, a
population of red foxes has
increased while the coyote
population has decreased. What
kind of relationship exists between
the foxes & the coyotes?
The coyotes are predators of
the foxes.
Present day whales evolved from
ancestors that had four legs. What
would the fossils look like to support
this theory?
The oldest fossils had four limbs &
the most recent had flipper-like limbs
The carbon cycle includes carbon
output to the atmosphere and
carbon reservoirs. These reservoirs
help to maintain atmospheric
carbon. What would happen to
cause atmospheric carbon to
increase?
Destruction of any of the
carbon reservoirs
True or False: Crocodiles have more
traits in common with mammals
than they do with birds?
False; birds & crocodiles are on the
same evolutionary branch
What type of organism did the
pine cone & leaf come from?
Pitch pine
Animal
Sequence of Bases in Section of Hoxc8
Mouse
C
A
G
A
A
A
T
G
C
C
A
C
T
T
T
T
A
T
G
G
C
C
C
T
Baleen whale
C
C
G
A
A
A
T
G
C
C
T
C
T
T
T
T
A
A
G
G
C
G
C
T
Chicken
A
A
A
A
A
A
T
G
C
C
G
C
T
T
T
T
A
C
A
G
C
T
C
T
According to the table, which 2
organisms are more closely
related?
Mouse & baleen whale