Pick the Best Choice by Estimating

question 115

Multiple Choice

Pick the best choice by estimating. Do not measure. For metric measurements, do not attempt to convert to the U.S. system. The hardest part of the transition to the metric system is the transition to thinking in metrics. The length of your math textbook is about __________.

• A) 2 ft
• B) 6 cm
• C) 9 in.
• D) 19 in.
• E) 9 cm

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Definitions:

Circannual

Referring to biological processes or behaviors that occur on a yearly cycle, such as migration or hibernation.

Circadian

relates to biological processes that occur on a roughly 24-hour cycle, influencing sleep-wake patterns, hormone release, and other body functions.

Ultradian

Referring to recurrent periods or cycles repeated throughout a 24-hour day, such as the stages of sleep.

Infradian

Referring to biological rhythms with cycles that are longer than 24 hours, such as menstrual cycles or seasonal behaviors.