El sistema de nomenclatura binominal identifica a una especie inequívocamente, pues no puede haber dos especies diferentes con el mismo nombre y evita la pluralidad de nombres comunes con el que se la pueda conocer según el idioma o región, que además pueden nombrar a más de un taxón diferente.
Answer:
Bed bugs belong to the Cimicidae family (that's Latin for bloodsucking wingless bugs). They come in the order of Hemiptera.
The answer is Catecholamine. It is any of a class of aromatic amines that includes a number of neurotransmitters such as epinephrine and dopamine. The adrenergic receptors are a class of G protein-coupled receptors that are targets of the catecholamines, especially norepinephrine (noradrenaline) and epinephrine (adrenaline). These three - catecholamine, peptide hormones and eicosanoids acts as extracellular membrane receptors which means that these receptors are embedded in the membranes of cells. They act in cell signaling by receiving (binding to) extracellular molecules.
Natural selection is the right answer hope this helps.