What characteristics define Lithobates sylvaticus's placement in Class Amphibia?
Undergoing metamorphosis, possessing smooth, moist skin, and being ectothermic
The classification of an organism into the Class Amphibia is based on a set of defining physiological and developmental traits that distinguish amphibians from other vertebrates. For the Wood Frog, *Lithobates sylvaticus*, these criteria include undergoing metamorphosis, a process where the aquatic larval stage transforms into a terrestrial or semi-aquatic adult. Furthermore, amphibians are characterized by having smooth, moist skin, which aids in cutaneous respiration (breathing through the skin). Finally, they are defined as ectothermic, meaning they rely on external environmental sources to regulate their body temperature, rather than generating heat internally. These features collectively determine its position within the taxonomic hierarchy above the Order level.
