JAMB Biology · Ecology
The ecology of populations: JAMB Biology Past Questions and Answers
What the JAMB syllabus covers in The ecology of populations
Our summary: Population density and overcrowding, what controls population size, and ecological succession.
- Population density and overcrowding
- Factors affecting population sizes ((i) Biotic (food, pest, disease, predation, competition and reproductive ability); (ii) Abiotic (temperature, space, light, rainfall, topography, pressure, pH) etc.)
- Ecological succession ((i) primary succession; (ii) secondary succession.)
Objectives
- determine the reasons for rapid changes in human population and the consequences of overcrowding.
- compute/calculate density as the number of organisms per unit area.
- deduce the effect of these factors on the size of population.
- determine the interactions between biotic and abiotic factors (e.g. drought or scarcity of water which leads to food shortage and lack of space which causes increase in disease rates).
- trace the sequence in succession to the climax stage of stability in plant population.
Syllabus content © The Joint Admissions and Matriculation Board (UTME).
JAMB Biology questions on The ecology of populations
- JAMB 2024A community with a population of two million three hundred and ten thousand people living in an area of two thousand three hundred and ten square kilometres has…
- JAMB 2024Ecological succession can result from
- JAMB 2024A succession that occurs in an area where there are no pre-existing community is called
- JAMB 2024One of the characteristics of secondary succession is that it
- JAMB 2024The organisms that adopt swarming as an adaptation to overcome overcrowding are
- JAMB 2024The abiotic factor that affect the population growth of an organism is
- JAMB 2024Which of the following factors can lead to overcrowding?
- JAMB 2023What is the term used to describe the maximum number of individuals of a species that an environment can support indefinitely?
- JAMB 2023Ecological succession refers to
- JAMB 2023What is the definition of population ecology?
- JAMB 2022Succession that occurs on an abandoned farm land is?
- JAMB 2021I. High birth rate and high immigration rate II. Low birth rate and high immigration rate III. Low mortality rate and low emigration rate IV. High mortality…
- JAMB 2021The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomoea spp (5), Sida spp (7) and Imperata spp (23)…
- JAMB 2020A group of organism of different species living in a particular area is described as a
- JAMB 2019Which of the following will have the least effect on the rate of change of the numbers in a population
- JAMB 2019A population is best described as
- JAMB 2018Which of the following instruments is used to estimate the number of plants in a habitat?
- JAMB 2018A group of organism of the same species living together in a particular area is described as
- JAMB 2017Which of the following factors can reduce the population of a community?
- JAMB 2016A collection of population of all living organisms that exist in a habitat is referred to as
- JAMB 2015A group of organisms of the same kind inhabiting the same environment is called
- JAMB 2015The population of different organisms that exist together in a habitat is called
- JAMB 2014The study of how and why population size change over time is
- JAMB 2012The abiotic factors that control human population include
- JAMB 2012The most likely first colonizers of a bare rock are
- JAMB 2012The carrying capacity of a habitat is reached when the population growth begins to
- JAMB 2011Lack of space in a population could lead to an increase in
- JAMB 2011Which of the following is a feature of the population pyramid of a developing country?
- JAMB 2011Which of the following groups of environmental factors are density-dependent?
- JAMB 2010The average number of individuals of a species per unit area of the habitat is the?
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