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Sagot :
Let's consider the options provided for units used in a pyramid of numbers:
A. Individuals: The pyramid of numbers represents the number of individual organisms at each trophic level in an ecosystem. Therefore, this option seems appropriate as it directly refers to the count of organisms.
B. m/s²: This unit represents acceleration, specifically meters per second squared, which is a measure of how quickly an object's speed is changing. This unit is not relevant to a pyramid of numbers, which deals with counts of organisms.
C. Kilocalories: This unit measures energy. While energy pyramids (pyramids of energy) use kilocalories to represent the total energy content at each trophic level, this unit is not used for a pyramid of numbers.
D. g C/m²: Grams of carbon per square meter is a unit used to measure biomass in a pyramid of biomass, not in a pyramid of numbers.
Considering the most accurate representation, the answer is:
A. Individuals
A. Individuals: The pyramid of numbers represents the number of individual organisms at each trophic level in an ecosystem. Therefore, this option seems appropriate as it directly refers to the count of organisms.
B. m/s²: This unit represents acceleration, specifically meters per second squared, which is a measure of how quickly an object's speed is changing. This unit is not relevant to a pyramid of numbers, which deals with counts of organisms.
C. Kilocalories: This unit measures energy. While energy pyramids (pyramids of energy) use kilocalories to represent the total energy content at each trophic level, this unit is not used for a pyramid of numbers.
D. g C/m²: Grams of carbon per square meter is a unit used to measure biomass in a pyramid of biomass, not in a pyramid of numbers.
Considering the most accurate representation, the answer is:
A. Individuals
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