The chart shows four stages of demographic transition. Which situation best describes the transitional stage (Stage 2)? Stage 1 Preindustrial stage Stage 2 Transitional stage Stage 3 Industrial stage Stage 4 Postindustrial stage 40 30 Rate per 1000 20 10 0 Total population Death rate Birthrate O A. Sharply dropping birthrate and death rate B. High birthrate and dropping death rate C. High birthrate and equally high death rate O D. High and stable total population​

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.

i think it is d. objects resist changes in their state of motion.