I believe the first answer is #4 and the second is #1. Please correct me if I am wrong.
1. Sustainable 2. Environmental
Both lipids and carbohydrates are important in animal cells because store energy. The main biological functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Carbohydrates on the other hand have six major functions in the body; including providing energy and regulation of blood glucose, sparing the use of proteins for energy, breakdown of fatty acids and preventing ketosis.
The carbon(C) and oxygen(O2) is the reactants and carbondioxide(CO2) is the produce
Knowing their family's history can help then know what possibilitys of medical issues the baby might have when they are born