This research report fully supports my claim that “Olfaction and odor receptors provide a clear evolutionary trail that can be followed from unicellular organisms to insects to humans.”
Do cells in the blood, heart and lungs smell the food we eat? April 7, 2013 in Medical research
Excerpt: “In a discovery suggesting that odors may have a far more important role in life than previously believed, scientists have found that heart, blood, lung and other cells in the body have the same receptors for sensing odors that exist in the nose.”
Excerpt: “…blood cells isolated from human blood samples are attracted to the odorant molecules responsible for producing a certain aroma.”
My comment: See also Laska et al., (2007): Excerpt: “…(a) between-species differences in neuroanatomical or genetic features may not be indicative of olfactory sensitivity, and (b) within-species differences in olfactory sensitivity may reflect differences in the behavioural relevance of odorants.”
It is nutrient-dependent pheromone-controlled adaptive evolution that links the epigenetic effects of olfactory/pheromonal input to the relevance of odors via their effects on hormones in invertebrates and the affects of vertebrate hormones on behavior. In my model, these epigenetic effects result in changes in behavior in species from microbes to man. Without the epigenetic effects of nutrients and pheromones, adaptive evolution could not occur via the gene, cell, tissue, organ, organ-system reciprocity I have detailed.