Which of the Following Experiments Is the Best Way to Determine

question 28

Multiple Choice

Which of the following experiments is the best way to determine if an element is essential for plant growth?

• A) Measure the amount of the element stored in plant tissues.
• B) Grow plants in soil deficient in the element and note whether or not the plants are healthy.
• C) Measure the amount of the element in the soil after plant growth.
• D) Grow plants using hydroponics with and without the element and measure plant growth and health.
• E) Measure the weight of the plant and soil before and after plant growth.

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Definitions:

Interaction

In statistics and research, it refers to a situation where the effect of one independent variable on the dependent variable differs depending on the level of another independent variable.

Profile Plot

A graphical representation of the multivariate data where each observation is represented by a plot, often used to observe patterns over time or conditions.

Main Effect

In statistics, the term refers to the primary effect of an independent variable on a dependent variable in experimental design.

Material

The substance or substances from which a thing is or can be made.