In the lemon shark experiment, which is the independent variable?

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Discover the NOVA Hunting the Elements Test. Engage with interactive flashcards and multiple choice questions. Prepare effectively for your assessment!

Multiple Choice

In the lemon shark experiment, which is the independent variable?

Explanation:
The main idea is that the independent variable is the factor you deliberately change to see its effect. In the lemon shark experiment, researchers vary which elements are present in the tuna given to the shark, so the element composition is the factor being tested across groups. The shark’s reaction is what you measure, making it the dependent variable. An individual element like samarium isn’t the broad factor being varied, and describing one condition like the tuna with lead is illustrating a specific setup, not the variable that’s changed across all conditions. So the elements are the independent variable.

The main idea is that the independent variable is the factor you deliberately change to see its effect. In the lemon shark experiment, researchers vary which elements are present in the tuna given to the shark, so the element composition is the factor being tested across groups. The shark’s reaction is what you measure, making it the dependent variable. An individual element like samarium isn’t the broad factor being varied, and describing one condition like the tuna with lead is illustrating a specific setup, not the variable that’s changed across all conditions. So the elements are the independent variable.

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