The mass of an amoeba is approximately 4.0 X 10^(-6) grams. Approximately how many amoebas are present in a sample that weighs 1 gram?
Approximately 2.5 X 10^5 amoebas are present in a sample that weighs 1 gram.
To find the number of amoebas in a 1-gram sample, we divide the total mass of the sample (1 gram) by the mass of one amoeba (4.0 X 10^(-6) grams). This calculation yields approximately 2.5 X 10^5 amoebas.
This choice correctly represents the number of amoebas calculated by dividing 1 gram by the mass of an individual amoeba (4.0 X 10^(-6) grams). Performing the calculation gives us 1 gram / (4.0 X 10^(-6) grams) = 2.5 X 10^5 amoebas.
This answer suggests an incorrect calculation. If we mistakenly multiplied the mass of the amoeba instead of dividing, we would arrive at a much larger number, which does not accurately reflect the number of amoebas in the sample.
While this choice is a plausible figure, it is based on an incorrect calculation. This result may reflect a misunderstanding of the division process needed to determine the number of amoebas from the total mass and the mass of a single amoeba.
This option represents an exaggerated value and likely results from either multiplication errors or a misinterpretation of the scaling of the amoeba's mass. The correct approach clearly shows that the actual number of amoebas is significantly lower.
The correct calculation shows that approximately 2.5 X 10^5 amoebas can be found in a 1-gram sample based on their individual mass of 4.0 X 10^(-6) grams. Understanding the fundamental principle of division in this context is crucial for accurately determining the number of entities in a given mass. The other options reflect misunderstandings or miscalculations, highlighting the importance of precise arithmetic in scientific estimations.
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