Population Dynamics
Biology ⇒ Ecology and Environment
Population Dynamics starts at 8 and continues till grade 12.
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See sample questions for grade 8
A scientist observes that after a drought, the population of frogs in a pond decreases sharply. What type of limiting factor is the drought?
Describe one way humans can affect population dynamics in an ecosystem.
Describe what a population crash is and give one possible cause.
Describe what happens to a population when it exceeds its carrying capacity.
Describe what is meant by 'age structure' in a population.
Explain the difference between density-dependent and density-independent limiting factors.
Explain the difference between emigration and immigration in population dynamics.
A scientist observes that after a drought, the population of frogs in a pond decreases sharply. What type of limiting factor is the drought?
Which of the following best describes 'carrying capacity'? (1) The maximum number of individuals an environment can support (2) The number of births in a population (3) The number of deaths in a population (4) The rate at which a population grows
Which of the following best describes logistic growth? (1) Growth with no limits (2) Growth that slows as it reaches carrying capacity (3) Growth that decreases over time (4) Growth that is always constant
Which of the following is a biotic factor affecting population dynamics? (1) Temperature (2) Water (3) Predators (4) Sunlight
Which of the following is a density-independent factor? (1) Competition (2) Predation (3) Flood (4) Disease
Fill in the blank: The movement of individuals into a population is called ______.
Fill in the blank: The number of individuals leaving a population is called ______.
Fill in the blank: The pattern of population growth that starts rapidly and then levels off is called ______ growth.
Fill in the blank: The study of how populations change over time is called ______ dynamics.
True or False: Abiotic factors include things like water, temperature, and sunlight.
True or False: Competition for resources can limit population growth.
True or False: Exponential growth can continue forever in a natural environment.
True or False: Immigration increases the size of a population.
