Gause's Experiments with Paramecium and Didinium Showed

question 18

Multiple Choice

Gause's experiments with Paramecium and Didinium showed

• A) extinction of the predator, followed by extinction of the prey, in all habitats.
• B) coexistence of predator and prey at fairly constant population sizes, in all habitats.
• C) coexistence of predator and prey, but with oscillating population sizes, in all habitats.
• D) coexistence of predator and prey at fairly constant population sizes, but only in the presence of refuges and predator reservoirs.
• E) coexistence of predator and prey with oscillating population sizes, but only in the presence of refuges and predator reservoirs.

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Definitions:

Behavioral Activation Therapy

A treatment for depression that focuses on engaging patients in activities to improve mood and decrease depressive thoughts.

Psychodynamic Therapy

A therapeutic approach that emphasizes understanding the psychological roots of emotional suffering through introspection and self-examination.

Learned Helplessness

The perception, based on past experiences, that one has no control over one’s reinforcements.

Cognitive-Behavioral Therapy

A type of psychotherapeutic treatment that helps patients understand the thoughts and feelings that influence behaviors to treat various mental disorders.