An Amateur Gardener Decides to Change the Variety of Tomatoes

question 10

Multiple Choice

An amateur gardener decides to change the variety of tomatoes for this year to see if the yield improves.He put in six plants the previous year and six plants this year,using the same part of the garden.The average yield per plant was 11.3 pounds per plant in the previous year and 14.5 pounds per plant using the new variety.What is this an example of?

• A)An experiment
• B)An observational study not an experiment
• C)The elimination of all confounding variables by design,because the gardener used the same part of the garden in both years
• D)A multistage design,because 2 years were involved

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Definitions:

Fungus Cell

A eukaryotic cell belonging to the kingdom Fungi, characterized by a chitin cell wall, absence of chlorophyll, and a unique mode of heterotrophic growth and reproduction.

Club Fungi

A group of fungi characterized by the production of spores on club-shaped structures called basidia.

Fruiting Body

The reproductive structure produced by certain fungi and plants, designed for spore dissemination.

Mushroom

A type of fungus characterized by a cap on a stem, producing spores beneath the cap, and known for a variety of shapes, sizes, and colors.