Charles and Francis Darwin Concluded from Their Experiments on Phototropism

question 65

Multiple Choice

Charles and Francis Darwin concluded from their experiments on phototropism by grass seedlings that the part of the seedling that detects the direction of light is the

• A) tip of the coleoptile.
• B) part of the coleoptile that bends during the response.
• C) base of the coleoptile.
• D) cotyledon.
• E) phytochrome in the leaves.

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Definitions:

Eating Disorder

A group of psychological conditions marked by abnormal or disturbed eating habits that negatively affect a person's physical and mental health.

Cognitive-Behavioral Therapy (CBT)

Treatment focused on changing negative patterns of thinking and solving concrete problems through brief sessions in which a therapist helps a client challenge negative thoughts, consider alternative perspectives, and take effective actions.

Interpersonal Therapy (IPT)

More structured, short-term version of psychodynamic therapies.

Bulimia Nervosa

A disorder involving cycles of excessive eating and then engaging in behaviors to avoid gaining weight by purging.