There are five basic taste sensations. select the one mismatched with its stimulating agent. bitter; acids such as those in toxins or poisons umami; amino acids such as glutamate or aspartate found in chicken soup sweet; organic compounds such as sugar sour; hydrogen ions from acids such as those in lemons salty; metal ions such as potassium or sodium

The mismatched pair is bitter; acids such as those in toxins or poisons.   Ligands (stimulating agent) for bitter receptors are molecules like cycloheximide, denatonium, or β-glucopyranosides. Bitterness is the most sensitive of the tastes and it often has unpleasant taste. The most often used bittering agent is caffeine. Bitter foods and beverages include coffee, unsweetened cocoa, olives, citrus peel, beer…

Fossil found in strata reveal that unused body part decrease in size

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.