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 10
A population of 1000 birds has 200 births and 100 deaths in a year. What is the net change in population size?
A population of 600 animals has a birth rate of 0.1 and a death rate of 0.05 per year. What is the expected population size after one year?
A population of deer has a carrying capacity of 800. If the current population is 900, what is likely to happen to the population size?
A population of fish in a lake is 500. If 50 fish immigrate and 30 emigrate, what is the new population size?
A population of insects doubles every month. If there are 100 insects in January, how many will there be in March?
A population of rabbits increases from 200 to 300 in one year. What is the growth rate per year?
Describe how natural disasters can affect population dynamics.
Describe the effect of competition on population size.
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 exponential and logistic population growth.
Explain the role of limiting factors in population dynamics.
Explain what is meant by 'population distribution'.
Explain why populations cannot grow indefinitely.
What is meant by 'population fluctuation'?
What is the term for the number of births in a population over a certain period of time?
Which term describes the movement of individuals out of a population?
A population of 1,500 individuals has an age structure where 60% are juveniles, 30% are adults, and 10% are elderly. What is the number of adults in the population?
A population of 2,000 animals has a birth rate of 0.08 per year and a death rate of 0.06 per year. If 100 individuals immigrate and 50 emigrate during the year, what is the population size at the end of the year?
A population of bacteria in a laboratory culture starts with 1,000 individuals. The population doubles every 4 hours. How many bacteria will there be after 24 hours, assuming no deaths or limiting factors?
