Sap by the fact that phloem sap is physiologically extreme in terms of animal digestion, and it is hypothesized that few animals take direct advantage of this because they lack two adaptations that are necessary to enable direct use by animals. These include the existence of a very high ratio of non-essential/essential amino acids in phloem sap for which these adapted Hemiptera insects contain symbiotic microorganisms which can then provide them with essential amino acids; and also insect "tolerance of the very high sugar content and osmotic pressure of phloem sap is promoted by their possession in the gut of sucrase-transglucosidase
Sugary drink tax subsidize healthier foods like fruits and vegetables. The imposition of a sugar tax means that sellers of sugary drinks would have to increase the price of their goods by an amount P2 from the original price X, and then take on the rest of the tax themselves (P1) in the form of lower profit per unit sold. The tax burden on consumers (P2) makes it more expensive for consumers to buy sugary drinks and hence a higher proportion of their incomes would have to be spent to buy the same amount of sugary drinks. This decreases the equilibrium quantity of