Biology, asked by anooshmassey, 1 year ago

what is yawn and why do people yawn?

Answers

Answered by siasword
1
we basically on when we are very bored .
but yawning is the process in which John helps to give more oxygen to the blood and take out more carbon dioxide from the blood
Answered by TauseefSehar
1
HERE IS YOUR ANSWER MATE .

A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the eardrums, followed by an exhalation of breath.

Yawning (oscitation) most often occurs in adults immediately before and after sleep, during tedious activities and as a result of its contagious quality..

HOPE IT HELPS .
MARK AS BRAINLIEST .

TauseefSehar: MARK AS BRAINLIEST .
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