Answer:
because people where not alive yet oontill cenoznic era
Explanation:
C. nucleic acids (consisting of genes which encode for specific proteins to be synthetized)
Answer:
<u>Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.</u>
Explanation:
according to wikipedia!
