You are presented with the question "What process is needed to support a baby in the womb?" and the following answer choices: 
- Perspiration
 - Energy
 - heating liquids
 - Respiration
 - organs
 - Validation
 - Energy.
 - Doctrination

Now knowing that oxygen is essential for cellular respiration for all aerobic organisms and less oxygen for the mother means less oxygen for the baby, choose the best answer.


 

    Respiration     