diffusion, 48-49
dimethylsulfide, 143
dimethyltryptamine (DMT), 112
Dimorphotheca aurantiaca, 130
dipeptide, 33
diploid chromosome number, 116
Dirac, Paul, 39, 40
dithiapentane, 145
DNA (deoxyribonucleic acid), 35-36
genetic information, 37, 116-17
structure of, 36, 45-46
dopamine, 26-27, 109
dorsal root ganglia (DRG), 188
double bond, 25
dreams, 236-37
Drosophila, 9,234
drug, 75
dualism, 259
Duchenne, Guillaume, 244, 274
Duchenne smile, 244
dura mater, 12
durian fruit, 144-45, 272
Durio, 144-45
ear
auditory signaling, 182-83
basilar membrane, 179-80
bony labyrinth, 179, 180f, 185
external structure, 177-78, 179f
hair cells, 180-81, 181f
middle, 178-79, 179f
Earth, origin of life, 257-58
echolocation, 132-33