Which Experiment Reduced the Number of Dying Motoneurons in Developing

question 6

Multiple Choice

Which experiment reduced the number of dying motoneurons in developing chick embryos?

• A) Implanting an extra limb from another embryo
• B) Removing a limb
• C) Implanting a tail from another embryo
• D) Implanting a head from another embryo
• E) Removing the tail

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Definitions:

Control Group

In experimental research, a group of subjects who do not receive the treatment being tested, used as a benchmark to measure the effect of the treatment.

Dependent Variable

In an experiment, it is the variable being tested and measured, which is expected to change due to manipulation of the independent variable.

Independent Variable

A variable in an experiment that is manipulated by the researcher to observe its effect on the dependent variable.

Control Variable

An element that is kept constant or regulated to minimize its impact on the outcome of an experiment.