#1
Which of the following is a density-independent factor affecting population growth?
Climate change
ExplanationNot influenced by population density, impacting growth universally.
#2
Which of the following is an example of a density-dependent factor regulating population size?
Disease outbreaks
ExplanationOccurs more prominently with higher population densities.
#3
What is the approximate current world population as of 2024?
7.5 billion
ExplanationCurrent estimate of the global human population.
#4
Which of the following is an example of a density-independent factor affecting population growth?
Climate events
ExplanationEvents impacting populations regardless of density.
#5
Which of the following is a push factor influencing human migration?
Natural disasters
ExplanationEnvironmental events driving people to leave a region.
#6
Which equation represents the logistic growth model?
dN/dt = rN(K - N)/K
ExplanationDescribes population growth rate with limiting factors considered.
#7
The demographic transition model involves transitions between which stages?
Pre-industrial, industrial, post-industrial
ExplanationTracks changes in birth and death rates over socio-economic development stages.
#8
Which of the following is not a characteristic of a Type I survivorship curve?
Commonly found in r-strategist species
ExplanationTypically associated with K-strategist species due to high initial survivorship.
#9
What is the relationship between population growth rate and the age structure diagram in an expanding population?
Pyramid-shaped age structure
ExplanationHigh birth rates leading to a youthful population structure.
#10
What term describes the maximum rate at which a population could increase under ideal conditions?
Biological potential
ExplanationTheoretical maximum reproductive rate achievable.
#11
What does the term 'carrying capacity' refer to in ecology?
The maximum population size a habitat can support indefinitely
ExplanationLimit to the sustainable population size given available resources.