Q. Which of the following is an example of mutualism? (2021)
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A.
A lion hunting a zebra
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B.
Bees pollinating flowers
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C.
A tick feeding on a dog
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D.
A bird eating ticks off a cow
Solution
Mutualism is a symbiotic relationship where both species benefit, such as bees pollinating flowers.
Correct Answer: B — Bees pollinating flowers
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Q. Which of the following is NOT a characteristic of a population? (2023)
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A.
Density
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B.
Birth rate
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C.
Age structure
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D.
Species diversity
Solution
Species diversity refers to the variety of species in an ecosystem, not a characteristic of a single population.
Correct Answer: D — Species diversity
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Q. Which of the following is NOT a characteristic of K-selected species? (2022)
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A.
Long lifespan
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B.
High parental care
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C.
High reproductive rate
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D.
Stable population size
Solution
K-selected species typically have low reproductive rates, focusing on raising fewer offspring with high parental care.
Correct Answer: C — High reproductive rate
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Q. Which of the following is NOT a characteristic of r-selected species? (2019)
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A.
High fecundity
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B.
Short lifespan
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C.
Low parental investment
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D.
Long gestation period
Solution
R-selected species are characterized by high fecundity and short lifespans, not long gestation periods.
Correct Answer: D — Long gestation period
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Q. Which of the following terms describes the maximum population size that an environment can sustain? (2018)
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A.
Carrying capacity
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B.
Biotic potential
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C.
Population density
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D.
Ecological footprint
Solution
Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.
Correct Answer: A — Carrying capacity
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