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WorksheetsPopulations and human interactions
Total questions: 26
Worksheet time: 13mins
Which of the following terms represents when a population has reached a stage when birth rates and death rates are equal
Full vacancy
Logistic growth
Exponential growth
carrying capacity
What type of graph is displayed below?
logistic
exponential
predation
density
What type of graph is displayed below?
Predation
Exponential
Logistic
Climate change
In January 2018, the smallest country Vatican City reported the following: population size: 800 people. In December of 2018 the following was reported: births = 100, deaths = 10, immigration = 50 and emigration = 20. Which of the following is true about Vatican City population in 2018
it increased to 920
it decreased by 920
nothing happened
none of the above
Factors that control population growth such as competition, predation, and parasitism are known as...
density dependent factors
density independent factors
crowding and stress
logistic growth
In Los Angeles California there has been a rise in the homeless population which has caused an increase in trash and left out food. Because of this the Black Rat population is starting to overpopulate skid row. There is projected to be 10 rats per square mile in that area. what formula what an ecologist need to use to know this information.
density # of births/#deaths
density = # individuals/area
density = # immigration/emigration
rate of population = births- deaths/ area
Hurricane Dorian has caused a great disturbance in the aquatic life of that habitat in the Bahamas. Many populations have been forced to leave due to a lack of resources available. Which of the following terms best identifies the actions of the aquatic populations?
immigration
birth/death rate
emigration
population density
Which of the following is the correct term for identifying the movement of individuals into an area?
birth/death rate
emigration
immigration
population density
The Bahamas was hit by a class 5 hurricane. It affected the human along with other population's resources. This Hurricane would be consider what type of limiting factor
density dependent
parasitism
immigration
density independent
Below is a graph of male seal births for a period of time. Based on the graph what is the carrying capacity for this population?
7000
8000
10000
9000
Exponential growth will happen in a human population due to
density dependent factors
density independent factors
crowding and stress
logistic growth
A break out of measles epidemic in the mid-western states causes more deaths to occur. This is an example of
density independent factor
density dependent factor
famine
ice age
Which of the following is NOT an example of a Density Dependent Factor?
Parasitism
Natural Disasters
Predation
Competition
A density-dependent limiting factor only becomes limiting if:
A population begins to decrease in size.
Random events occur in nature.
There are predator-prey interactions.
A population reaches its carrying capacity.
The movement of individuals into an area is known as:
Supplementation
Emigration
Immigration
Eradication
Typical population growth is described as:
Logarithmic growth
Logistic growth
Linear growth
Exponential growth
Emigration is:
When a population continues to increase.
When individuals move into an area.
When individuals move out of an area.
The study of human popuations.
In a given area, if the population of predators increases, the population of prey will _____________.
increase
decrease
remain about the same
go extinct
Which factor would contribute to an exponential growth rate in a given population?
higher death rates
less competition
less resources
lower birth rates
All of the following are density-independent factors except:
seasonal changes
hurricanes
less space
deforestation
Population density can be best described as:
The amount of deaths that occur in a population
The amount of births that occur in a population
The amount of individuals in a given space.
The amount of available nutrients in an ecosystem
The maximum amount of organisms of a species that can be supported by an environment is:
exponential growth
logistic growth
population growth
carrying capacity
Ever since the Industrial Revolution, human population has generally:
increased
decreased
remained the same
ecology
A density-independent factor happens:
depending on the number of predators hunting prey
depending on the size of the population
if there are no resources left in a habitat
regardless of the size of the population
A biotic or abiotic resource in the environment that causes population size to decrease is a
growth factor
limiting factor
carrying capacity
limiting nutrient
Which of the following is NOT an example of a limiting factor?
primary productivity
limiting nutrient
exponential growth
disease
