Rotary, oscillating, linear, reciprocating
When 2 species bennift like fish cleaning a whale by eating off his skin
d. most single-celled eukaryotes. These organisms have only one cell, but just like other eukaryotes, contain a well-developed nucleus. Single-celled eukaryotes fall under fungi and protista.
Adrenergic modifiers bind to epinephrine receptors while
cholinergic modifiers bind to ACh receptors. Either of these drugs will inhibit
the natural ligand actions or mimic the natural ligand molecules when it binds to the
receptor.
Epinepherine can be classified as adrenergic, even though it is a
natural ligand (chemical). Pilocarpine is a good example of a cholinergic
chemical.