Final answer:
While paramecia are single-celled organisms and salamanders are amphibians, they share cutaneous respiration and the ability to regenerate lost parts.
Step-by-step explanation:
Paramecia and salamanders are quite different in many respects, considering that paramecia are unicellular organisms while salamanders are complex multicellular amphibians. However, they do share some common features, most notably their methods of respiration and regeneration. Both paramecia and salamanders engage in cutaneous respiration, meaning they can breathe through their skin. This is particularly effective in moist environments which both types of organisms tend to inhabit. Additionally, both demonstrate the ability to regenerate lost parts; paramecia can regenerate their entire bodies from a portion of their cells, while salamanders can regenerate complex tissues such as limbs, tails, and in some cases, parts of their internal organs.