Iris Is a Long-Day Plant That Normally Flowers in the Spring

question 46

Multiple Choice

Iris is a long-day plant that normally flowers in the spring. Which of the following regimens would be the most effective in making an iris bloom in late fall?

• A)interrupting the plant's nights at 2:00 am with a flash of far-red light
• B)interrupting the plant's nights at 2:00 am with a flash of red light followed by a flash of far-red light
• C)interrupting the plant's nights at 2:00 am with a red flash, then a far-red flash, then a red flash
• D)interrupting the plant's days at 2:00 pm by putting it in the dark

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Definitions:

Confirmation Bias

The tendency to search for, interpret, favor, and recall information in a way that confirms one's preexisting beliefs or hypotheses.

Mental Set

A tendency to solve problems using procedures that worked before on similar problems.

Stereotype Threat

A burden of doubt a person feels about his or her performance, due to negative stereotypes about his or her group’s abilities.

Cognitive Ethology

The study of cognitive processes in nonhuman animals.