Question 15
Reviewed the following examples. Which of the following supports Darwin's idea of evolution by natural selection?

a. creation of organs for transplant from stem cells
b. cloning of plants and animals for increased availability
c. increase of antibiotic resistance in bacteria
d. development of transgenic organisms

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).