Which of the Following Statements Is True

question 1

Multiple Choice

Which of the following statements is true?

• A)Plants cannot obtain nitrogen directly from the air.
• B)The roots of a plant provide nitrogen required for plant growth.
• C)Lightning striking the soil is the leading cause of water soluble nitrogen salts.
• D)All of the above are true.
• E)none of the above

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Definitions:

Proximal Stimulus

The stimulus registered by the sensory receptors, e.g., the pattern of light falling on the retina, as opposed to the actual object in the environment.

Just Noticeable Difference

The minimal change in a stimulus that can just barely be detected by an organism.

Decibels

A unit of measurement for the intensity of sound, reflecting the relative loudness of sounds as perceived by the human ear.

Synesthesia

A condition in which one sense is simultaneously perceived as if by one or more additional senses, such as when seeing sound as colors.