A Typical Human Yawn Lasts for About Six Seconds and Once

question 18

Multiple Choice

A typical human yawn lasts for about six seconds and once initiated,is nearly impossible to stop.Although there are many hypotheses for why we yawn,it is accepted that yawning is contagious - when we see someone else yawn,we often find ourselves yawning as well.This happens across all cultures and even in infants! In this case,the yawn an individual observes is ____________,while their own yawn is ____________.

• A)an association,a conditioned response
• B)a releaser,an innate behavior
• C)innate behavior,habituation
• D)reflex response,learned behavior

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Definitions:

Genetics

The branch of biology that studies genes, genetic variation, and heredity in organisms.

Protein Synthesis

The biological process through which cells build proteins based on the genetic instructions encoded in DNA.

Liposomes

Small artificial vesicles made of lipid bilayers, used in drug delivery systems and various biotechnological applications.

Lipids

A group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins, and other related compounds, serving as energy storage and structural components of cell membranes.