Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
Which of the following terms describes a living component of an ecosystem?
abiotic factor
microhabitat
biotic factor
niche
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What is the principle stating that two species cannot occupy the same niche in the same environment simultaneously?
resource competition
selection
habitat segregation
competitive exclusion
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Which of the following is an example of an abiotic factor?
temperature
competition
predation
symbiosis
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How does increased light intensity affect ecosystems?
(Select all that apply)
boosts photosynthesis rates
leads to slower plant growth
leads to smaller population sizes in plants
provides more food for animals
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Which of the following best describes a habitat?
all the different species' populations within an ecosystem
the physical location where an organism lives
a smaller habitat within a larger one
the role of an organism in its ecosystem
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What is the term for a smaller habitat that has its own microclimate within a larger habitat?
ecosystem
niche
microhabitat
community
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Which of the following is true about the size of ecosystems?
they are always limited to isolated environments
they can range from small microbial communities to the entire biosphere
they are always defined by geographic boundaries
they are determined by the size of the habitat of a particular species
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What happens to endotherms when they are outside their optimal temperature range?
they become more active
their metabolic rates decrease
their reproductive success increases
they expend more energy to maintain their body temperature
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Which of the following is a consequence of reduced humidity for plants?
enhanced growth rates
increased water stress
increased photosynthesis
decreased transpiration
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What is the term for organisms of the same species living together in one habitat at the same time?
ecosystem
population
niche
community
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What is the term for all the different species' populations within an ecosystem?
niche
community
habitat
microhabitat
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Which of the following is included in an organism's niche?
the physical location where it lives
the conditions it needs to survive and reproduce
its role in the ecosystem
all of the above
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