Answer:
Some similarities between a sea slug and a spotted salamander:
1. They both reproduce in a water source. For sea slug oceans, while for Spotted salamander, mostly ponds.
2. They both lay eggs meaning they are oviparous.
Step-by-step explanation:
The sea slug is an aquatic animal without a bony skeleton. Spotted salamander have a bony skeleton with a similar resemblance to that of a lizard in shape but are diffferent in color, they are amphibians