JOIN ADRE 2.0 Telegram Group

Zoology Multiple Choice Questions with Answers

Question

Yawning occurs-

A due to excess concentration of O2 in lungs
B due to excess concentration of CO2 in blood
C due to excess concentration of CO2 in lungs
D None of the above

Answer & Explanation

Answer: Option [B]

Advertisement
ADRE 2.0 Mock Test - 5 Start Test
ADRE 2.0 Mock Test - 5 Start Test

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

NCERT Class 12 Biology Solved Multiple Choice Questions

ADRE 2.0 MOCK TEST

Take Mock Tests

Government Schemes Mock Test Start Test!
Political Science Mock Test – 42 Start Test
History Test – 190 Start Test
Quantitative Aptitude Test Start Test!
Data Interpretation - Mock Test Start Test!
General Awareness - Mock Test Start Test!
Reasoning Ability - Mock Test Start Test!
Advertisement