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Unit 1: Ecology Flashcards | StudBud
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Unit 1: Ecology
Unit 1: Ecology
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Ecology #ecology #population #cycle #succession #invasive
Flashcards
51 cards
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Questions
51
Answers
1
What would be the BEST method to remove an invasive species?
spray chemicals everywhere
introduce a species that can kill the invasive species
spray oil everywhere
get rid of the water that they are drinking
2
Which of the following is true about
Secondary
succession?
bare rocks are broken down into soil by pioneer species/moss
occurs because bare rocks are burned
occurs after a disturbance/fire & already has soil
occurs under water (there is a limited amount of sunlight)
3
Another word for a "
producer
" is
Heterotroph
Autotroph
4
In order to allow species to cross a habitat barrier such as a road, humans should build a(n):
Habitat fragmentation
Habitat precipitation
Habitat corridor
Habitat perforation
5
What has helped INCREASE the carrying capacity on Earth?
nothing
technology
water
coal
6
If an ecosystem is constantly changing, it is better to have ___ diversity.
more
less
7
Which phrase BEST describes
biodiversity
?
The amount of biomass in an ecosystem
The amount of energy in an ecosystem
The number of individuals in an ecosystem
The number of species in an ecosystem
8
Why are there few to no photosynthethic organisms at the bottom zone of the ocean floor?
The ocean floor contains many decomposers.
Most sunlight is absorbed before reaching these levels.
The temperature in these zones is extremely low.
Water is a limiting factor.
9
Which of these is a "heterotroph"
hawk
oaktree
rosebush
grass
10
Which organisms are most affected by biomagnification?
Producers
Primary Consumers
Secondary Consumers
Tertiary Consumers
11
Which of these is an "autotroph"
rabbit
wolf
grass
snake
12
Data on the
immigration
and
emigration
of a fish species would be most helpful in determining:
predator-prey relationships
population size of the species
interspecies competition
biological magnification
13
Resources that are
used
faster
than they form are called:
Renewable
Nonrenewable
14
Which processes are involved in the cycling of carbon within an environment?
photosynthesis and respiration
evaporation and condensation
transcription and translation
diffusion and transpiration
15
What kind of SUCCESSION is shown in this image?
Primary
Secondary
16
Only ____ percent of energy is transferred from trophic level to trophic level
40%
10%
30%
20%
17
Acid rain has a ___________ pH than regular rain.
Lower
Higher
Same
18
Which points to a time when the birth and death rate were the same? (two possible answers)
I
III
II
IV
19
The amount of land needed to support a person is called:
toxicity
ecological footprint
ecological handprint
carbon dating
20
Which organism receives the
least
amount of energy from the producers?
rabbit
grass
snake
hawk
21
Which points to a time when the death rate EXCEEDED the birth rate?
III
I
IV
II
22
What will happen after a natural disaster damages an ecosystem?
a similar ecosystem will return if the climate is similar
a stable ecosystem will return in one year
a different ecosystem will return if the climate is similar
the area will be empty for centuries
23
Which is an "
abiotic
" factor in this picture?
deer
tree
fungus
water
24
Species that arrive to a new population & can even push out native species are referred to as:
Invasive species
Polluted species
Indicator species
Keystone species
25
Resources that
cannot
be used up or can replenish themselves over time are called:
Nonrenewable
Renewable
26
The removal of which of these would cause an immediate
decrease
in the amount of energy?
Inorganic nutrients
Producers
Consumers
Decomposers
27
Which of the following is a RENEWABLE resource?
coal
gasoline
oil
wind
28
What can be inferred from the graph?
As sewage decreased, oxygen decreased
As sewage increased, oxygen decreased
As sewage increased, oxygen increased
As sewage decreased, oxygen increased
29
Which cycle is shown in this picture? (look carefully)
nitrogen
phosphorous
carbon
hydrologic
30
What is "smog?"
air pollution
another word for dirt
soil pollution
water pollution
31
Which is a "
biotic
" factor in this picture?
fungi
river
sun
wind
32
Which of the following is a NONRENEWABLE resource?
oil/gasoline
wind
sunlight
33
If excess salt was added to the ocean water, what would happen to the marine population?
it would decrease
it would increase
it would remain the same
34
What occurs to the population between year 7 and 8?
neighborhood reached carrying capacity
birth rate increased
death rate exceeds birth rate
emigration rate decreased
35
Why do scientists want to get rid of pythons from the Florida Everglades?
pythons will interbreed with the native snakes
pythons are invasive species & kill the native organisms
pythons take up too much territory
because scientists hate snakes
36
High levels of ___________ are typical of Earth’s warmer periods.
nitrogen
oxygen
carbon dioxide
phosphate
37
When an individual moves INTO a population, this is referred to as
Immigration
Emigration
38
An organism with an unusually
large
effect on an ecosystem is called a(n)
keystone species
biotic factor
omnivore
heterotroph
39
Another word for a "
consumer
" is
Autotroph
Heterotroph
40
Which of the following terms best describes how the released water enters the atmosphere?
precipitation
condensation
evaporation
capillary action
41
What occurs to the population between year 8 and 9?
birth rate increased
emigration rate increased
death rate exceeds birth rate
neighborhood reached carrying capacity
42
Which of the following is true about
PRIMARY
succession?
occurs under water (there is a limited amount of sunlight)
bare rocks are broken down into soil by pioneer species/moss
occurs after a disturbance/fire & already has soil
occurs because bare rocks are burned
43
Which is true about an environment that has reached its
carrying capacity
and the population stays constant?
Growth & immigration is equal to death & emigration.
Growth & immigration is less than death & emigration.
Growth & immigration is greater than death & emigration.
44
Species that show signs of pollution either in their body (mutations) or in their offspring are
Invasive species
Keystone species
Polluted species
Indicator species
45
When an individual moves OUT of a population, this is referred to as
Emigration
Immigration
46
ALL trophic levels begin with
secondary consumers
tertiary consumers
producers
primary consumers
47
Which prevents an organism from accessing its entire home range, for example, a road?
Habitat corridor
Habitat perforation
Habitat precipitation
Habitat fragmentation
48
If the pH of ocean water is changed, what would happen to the marine population?
it would increase
it would remain the same
it would decrease
49
What kind of SUCCESSION is shown in this image?
Secondary
Primary
50
A new species is introduced to a community with no predators.What will happen to its population
it will remain the same
it will increase
it will decrease
51
Which points to a time when the birth rate EXCEEDED the death rate?
II
IV
I
III
