Tiger salamanders' markings are variable throughout their extensive range, but the most common marking resembles the vertically striped pattern of their mammalian namesake.
All are air-breathing, warm-blooded mammals that nurse their young. The difference between a dolphin and a porpoise has to do with their appearance: dolphins have longer snouts, bigger mouths, more curved dorsal fins, and longer, leaner bodies than porpoises. 1  Share on Facebook.  Tweet on Twitter.
The Porifera (sponges) differ from other animals in that they do not exhibit true tissue development but rather have a cellular level of organisation. They are simple in body form, having a sac-like body which is perforated by many pores, yet complex at the cellular level having several types of cells.he Porifera (sponges) differ from other animals in that they do not exhibit true tissue development but rather have a cellular level of organisation. They are simple in body form, having a sac-like body which is perforated by many pores, yet complex at the cellular level having several types of cells.