In the lemon shark experiment, which is the experimental group?

In the lemon shark experiment, which is the experimental group?

• A. Samarium
• B. The tuna with lead
• C. The shark
• D. The water

Answer: (A)

In experiments, the experimental group is the one that receives the treatment or factor you’re testing. For the lemon shark tracer setup, the factor being tested is the presence of samarium as a tracer. So the group involving samarium is the experimental group because it’s the element being introduced to observe its behavior or uptake. The shark is the subject being studied, the water is the medium, and the tuna with lead would be a separate variable or setup, not the treatment being tested here.

In experiments, the experimental group is the one that receives the treatment or factor you’re testing. For the lemon shark tracer setup, the factor being tested is the presence of samarium as a tracer. So the group involving samarium is the experimental group because it’s the element being introduced to observe its behavior or uptake. The shark is the subject being studied, the water is the medium, and the tuna with lead would be a separate variable or setup, not the treatment being tested here.