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A student has obtained a sample of pond water for study.Using the high-power lens,he observes several cells with nuclei.He can conclude that the cells are NOT bacteria.
Scientific Method
A systematic approach to research and inquiry where problems are identified, hypotheses formulated, experiments conducted, and conclusions drawn.
Controlled Laboratory Experiments
are research studies conducted in a highly regulated environment where variables are manipulated to observe their effects on outcomes.
Economics
The social science that studies how individuals, governments, firms, and nations make choices on allocating scarce resources to satisfy their unlimited wants.
Predictable
Able to be foreseen or declared in advance; capable of being predicted.
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