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 9
Describe how competition can affect population size.
Describe what happens to a population when the death rate exceeds the birth rate.
Describe what is meant by the term 'carrying capacity'.
Explain the difference between density-dependent and density-independent limiting factors.
A population of 1000 fish has a birth rate of 100 per year and a death rate of 80 per year. What is the annual population growth?
A population of 200 birds has 40 births and 10 deaths in a year. What is the net change in population size?
A population of 300 animals has a carrying capacity of 500. If the population grows by 50 animals per year, how many years will it take to reach carrying capacity?
A population of deer in a forest is 500. If 50 deer emigrate and 30 immigrate, what is the new population size?
Which of the following best describes a population with clumped dispersion?
(1) Individuals are evenly spaced
(2) Individuals are randomly spaced
(3) Individuals are grouped in patches
(4) Individuals are absent
Which of the following best describes exponential growth?
(1) Growth that slows as resources become limited
(2) Growth that increases at a constant rate
(3) Growth that increases rapidly without limits
(4) Growth that decreases over time
Which of the following best describes the term 'population dynamics'?
(1) The study of animal behavior
(2) The study of how populations change over time
(3) The study of plant growth
(4) The study of weather patterns
Which of the following is a biotic factor that can limit population growth?
(1) Temperature
(2) Predation
(3) Water availability
(4) Soil type
Fill in the blank: The movement of individuals into a population is called __________.
Fill in the blank: The number of births in a population over a certain period of time is called the __________.
Fill in the blank: The number of deaths in a population over a certain period of time is called the __________.
Fill in the blank: The pattern of spacing among individuals within a population is called __________.
True or False: A population crash can occur if resources are suddenly depleted.
True or False: Emigration increases the size of a population.
True or False: Human activities can affect the carrying capacity of an environment.
True or False: Limiting factors can be both biotic and abiotic.
