Refer to the Figure

question 45

Multiple Choice

Refer to the figure.
The figure shows various aspects of the legacy of Roman farming systems in central France. Based on the figure, which statement is true?

• A) All locales within 100 meters of the center of a settlement site have greater than average plant species richness.
• B) Soils near the center of a settlement site tend to be less acidic than those farther away.
• C) Phosphorus content tends to be higher near the center of settlement sites.
• D) Plant species richness and distance from settlement are directly proportional.

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Definitions:

Neural Signals

The electrical and chemical signals transmitted by neurons to communicate with each other or with muscles.

Human Vision

The ability of the eyes and brain to process light stimuli into images, enabling sight.

Candle Flame

The visible, luminous part of a candle that produces light and heat from the combustion of the candle’s fuel.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time.