Answer:
A digestive system uses enzymes to break down your food. The walls of the intestines absorb nutrients and vitamins, while the unused food gets processed to be removed from your body (Feces).
Explanation:
Answer: evaporation i believe
While studying bases in the DNA of organisms, Chargaff discovered that the ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.
Soil, water and food are all nonliving reservoirs of infection
