For This Pair of Items, Choose the Option That Best

question 27

Multiple Choice

For this pair of items, choose the option that best describes their relationship. (A) The percent of plant species that form ectomycorrhizae
(B) The percent of plant species that form arbuscular mycorrhizae

• A)Item (A)is greater than item (B).
• B)Item (A)is less than item (B).
• C)Item (A)is exactly or very approximately equal to item (B).
• D)Item (A)may stand in more than one of the above relations to item (B).

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Definitions:

Energy Level

The specific amount of energy an electron can have when occupying a certain orbital in an atom.

Atom

The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, and electrons orbiting the nucleus.

Spectrum Color

The band of colors produced when light is separated into its component wavelengths, visible as when passing through a prism.

Speed of Light

The speed at which light waves propagate through different mediums; in a vacuum, it is approximately 299,792 kilometers per second.