Answer:
Lipolysis. To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids and glycerol. This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by β-oxidation into acetyl CoA, which is used by the Krebs cycle ...
The nervous system is the most important body system and the heart is the most important muscle
D. The consumption of legal and illegal drugs
Try to convince mother to switch for breastfeeding if at all possible
Breastfeeding is the best for infants....but the word "to switch" doesn't match.
If the infant has taken feeding bottles yet, it's time to change the very first days.
Hope I helped !