Three Weeks After a River Rafting Trip, Three Family Members

question 8

Multiple Choice

Three weeks after a river rafting trip, three family members experienced symptoms of coughing, fever, and chest pain. During the rafting trip, the family had consumed crayfish that they caught along the river banks. An examination of the patientsʹ sputum revealed helminth eggs, and serum samples were positive for antibodies to Paragonimus. All of the family members recovered following treatment with praziquantel. In the Paragonimus life cycle,

• A) both humans and crayfish are definitive hosts.
• B) humans are the definitive host and crayfish are the intermediate host.
• C) the source of the infection was the river water.
• D) both humans and crayfish are intermediate hosts.
• E) the crayfish are the definitive host and humans are the intermediate host.

Differentiate between Gestalt psychology and other psychological approaches.

Comprehend how perceptions are influenced by patterns and configurations.

Describe the physiological processes involved in seeing and perception.

Understand the role of distance cues and motion in perception.

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Definitions:

Correlation

A statistical measure that describes the extent to which two variables change together, and the direction (positive or negative) of that relationship.

Magnitude

The size, extent, or importance of something, often quantified in terms of measurements or impact.

Case Study

An in-depth analysis of a particular subject, group, or event to explore causation in order to find underlying principles.

Analogue Experiment

A research method in which the researcher attempts to replicate or simulate under controlled conditions aspects of a real-life situation.