Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES)
In a given case if `CO_2` liberated during respiration is more than the volume of `O_2` used, the substance will be :
A. |
fats |
B. |
organic acid |
![]() |
C. |
protein |
D. |
carbohydrates |