A Certain Species of Pine Tree Survives Only in Scattered

question 46

Multiple Choice

A certain species of pine tree survives only in scattered locations at elevations above 2,800 m in the western United States. To understand why this tree grows only in these specific places, an ecologist should

• A) conclude that lower elevations are limiting to the survival of this species.
• B) study the anatomy and physiology of this species.
• C) investigate the various biotic and abiotic factors that are unique to high altitude.
• D) analyze the soils found in the vicinity of these trees, looking for unique chemicals that may support their growth.
• E) collect data on temperature, wind, and precipitation at several of these locations for a year.

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Definitions:

Distance Perception

The ability to estimate the distance of objects from oneself, which is crucial for navigation and interaction with the environment.

Monocular Cues

Depth cues, such as interposition and linear perspective, available to either eye alone.

Retinal Images

The visual images formed on the retina of the eye, resulting from light rays reflecting off objects and entering the eye.

Perceived

Interpreted or understood in a particular way by an individual, often based on sensory input and personal experience.