It is called THERAPEUTIC INDEX. Therapeutic index is the comparison of the amount of a particular drug that causes the desired therapeutic effects and the amount that causes toxicity. The index can be low or high. A drug with a low therapeutic index will require only a small increase in dose to produce toxic effects in users.
Well in order for chemical digestion to occur period, a enzyme is needed.
In the mouth this enzyme is amylase
Is by producing money for everyone
Death rate is lower than birth rate, and immigration equals emigration would lead to an increasing population.
Option D is the correct answer