43. At what stage of food processing do cells absorb small molecules such as amino acids and simple sugars from the digestive tract?
A. Digestion
B. Ingestion
C. Elimination
D. None of the above

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.