Organisms and Populations questions
349 published questions with worked solutions.
- If most individuals in a population are young, why is the population likely to grow rapidly in the future?
- A population with a larger proportion of older individuals than younger ones is likely to
- An urn-shaped population age pyramid represents a
- In a given population of 2000 individuals, 80 births and 125 deaths were reported over a given period of time. Which of the...
- The total number of individuals of a species per unit area and per unit time is called
- In some cases, population density is measured in terms of biomass rather than numbers because
- For which of the following cases can population density be easily determined without directly utilising the biological entities...
- The density of a population in a given habitat fluctuates due to changes in certain basic processes. Fill boxes A and B in the...
- Which of the following is not a factor that would limit the growth of a population?
- Which of the following factors has a negative effect on the population growth rate?
- If N = population density at time t, then population density at time t+1 can be written as Nt+1 = Nt + [(A+B)] − [(C+D)]. Select...
- Which of the following factors influences population density under normal conditions?
- Exponential growth is observed in a population when
- In a population, the per capita birth rate is 0.15 and the per capita death rate is 0.08 during a unit time period. What is the...
- Which of the following equations correctly represents the exponential population growth curve?
- The maximum possible number of individuals that a habitat can support is called its
- Which of the following equations correctly represents the Verhulst-Pearl logistic growth?
- The population growth is generally described by the equation dN/dt = rN(K-N/K). What does 'r' represent in this equation?
- A species interaction with a negative influence on both participants is referred to as
- Refer to the given table: '+' denotes beneficial interaction, '-' denotes detrimental interaction and '0' denotes neutral...
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