You have 10 acres of farmland to grow crops. What is the most energy efficient way to feed people with this land? A. Grow corn on half, and wheat on the other half, and use it to feed cows and pigs, and then eat the cows and pigs.
B. Grow corn to feed cows, and eat the cows.
C. Grow corn to feed chickens, and eat the chicken eggs.
D. Grow corn and eat the corn directly.

dz nuts.   eeneneneeenenne

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.