If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?
It will increase
It will decease
It will stay the same
It will fluctuate
If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?
It will increase
It will decrease
It will stay the same
It will fluctuate
What growth pattern describes a population who's growth rate slows or stops following a period of exponential growth?
logistic growth
population growth
exponential growth
predator-prey cycle
What type of growth is shown in the diagram?
exponential growth
logistic growth
predator-prey cycle
boom-bust curve
Largest number of individuals of a population that the enviroment can support....
carrying capacity
population crash
lag phase
mutualism
Which type of growth is best illustated by this rabbit population?
exponential
logisitic
S-shaped
predator-prey
What is the carrying capacity for this sheep population?
2,100
2,000
1,200
What point on the graph represents the carrying capacity?
A
B
C
D
E
When a population grows past the ecosystem's carrying capacity, what happens to the population?
Continues to grow
The population starts to die off to return to carrying capacity
The population will go extinct due to lack of recources
the population grows then finds a new carrying capacity
Food, water, sunlight, shelter, and space are resources that are often________.
limiting factors
wet
messy
found in rocks
If there is less food than usual in an ecosystem, then the population will most likley....
stay the same
decrease
increase
Anything or any organism that regulates the size of a population of another organism is known as ______?
a limiting measure
a limiting factor
factorization
materlialization
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
squirrel population
sunlight
grass available
Will competition increase/decrease the carrying capacity of an ecosystem for the animal in competition?
decrease
increase
Natural disaster can be considered limiting factors
true
false
Natural disasters and weather patterns like earthquakes, floods, and tornadoes, blizzards, and heatwaves are considered ______ ______ limiting factors
Density-dependent
Density-independent
Competition, disease, predation, and parasitism are considered _____ _____ limiting factors
Density-dependent
Density-independent
Density-dependent limiting factors have a(n) _________ affect on populations depending on the density of the population.
similar
different
Density-independent limiting factors have a(n) ________ affect on poulations regardless of population density.
similar
different
Exponetial growth is representative of a population in a enviroment with _______ recources.
limited
unlimited
Logisitc growth is representative of a population in an envirement with _______ recources.
limited
unlimited
A factor that is NOT one of the factors of population growth rate is:
A. immigration
B. death rate
C. emigration
D. demography
There are 2000 Hydrilla verticilla species per square kilometer in a certain area of a body of water. To which population characteric does this information refer?
A. growth rate
B. geographic distribution
C. age structure
D. population density
Organisms moving into an area from another area , is called
A. immigration
B. emigration
C. population control
D. carrying capacity
If organisms move out of an area, this is known as
A. emigration
B. abandonment
C. immigration
D. carrying capacity
In a population that grows, what is happening?
A. the birth rate gets higher than the death rate
B. the birth rate is constant and the death rate increases
C. the birth gets lower than the death rate
D. the birthrate and the death rate remain contant
In a population that decreases the following is happening :
A. the birthrate and the death rate remain equal
B. the death rate gets lower than the birthrate
C. the death rate stays the same and the birth rate increases
D. the death rate gets higher than the birthrate
When resources in a population become less available, the population growth
A. tends to decrease rapidly
B. tends to increase slowly
C. tends to reach carrying capacity
D. a phase of exponential growth occurs
As the exponential phase of a logistic growth curve of a population stops,
A. the population size drops
B. the population size stays the same
C. population growth starts to slow down
D. population growth starts to speed up
What levels of ecological organization have only biotic factors?
ecosystem, biome, biosphere
individual, population, community
population, ecosystem
biome, biosphere
What ecological organization have both biotic and abiotic factors?
ecosystem, biome, biosphere
individual, population, community
population, ecosystem
biome, biosphere
All the members of the same species living in the same area at the same time is called?
individuals
populations
community
ecosystem
Would all the alligators, frogs, plants, algae, fish, bacteria, etc. living in the St. Johns River be >>>>>
individual
population
community
ecosystem
What will happen to a population that has mostly old individuals?
increase
stay the same
decrease
What type of curve is logistic population growth?
J curve
S curve
What type of curve is expontential population growth?
J curve
S curve
Factors that limit the population from growing is ?
density independent factors
limiting factors
biomes
carrying capacity
The largest population size an environment can sustain is called?