If a Flatworm Is Positioned Relative to a Stationary Light

question 105

Multiple Choice

If a flatworm is positioned relative to a stationary light source such that more light-sensitive cells are stimulated in its right than in its left eye cup, the planarian will

• A) turn to the left.
• B) turn to the right.
• C) make a complete clockwise circle.
• D) make a complete counterclockwise circle.
• E) stop moving.

Describe the visual pathway from the retina to the brain.

Explain the adaptations of the eye for vision in different light conditions.

Recognize the importance and functioning of other sensory organs related to balance and hearing.

Understand the physiological basis for color vision and how it enables the perception of millions of colors.

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Definitions:

Reason

The mental capacity of an individual to apply logic in analyzing and solving problems, and in making decisions or forming judgments.

Critical Thinking

The objective analysis and evaluation of an issue in order to form a judgment.

Biological Psychologists

Scientists who specialize in understanding the relationship between the psychological processes and the underlying physiological events—or, in other words, the mind-body phenomenon.

Specific Biological Factors

Particular physiological elements that can influence an individual's physical and psychological health, such as genetics, brain chemistry, and hormone levels.