Dr. morris predicts that if a new drug is given to rabbits, then the drug will increase their metabolic rates and cause them to lose weight. he designs an experiment to test his prediction. dr. morris separates six rabbits into two equal groups and weighs them all individually. he gives the experimental group of rabbits the drug but does not give it to the control group. he keeps everything else about the rabbits' living environment the same, including the amount of food and water provided. after three weeks, dr. morris reweighs the rabbits to see if they have lost weight. his results are shown in the table below.

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.