1. Both are animals:
Both cold-blooded and warm-blooded animals belong to the kingdom Animalia and share fundamental characteristics common to all animals.
2. Cellular Level of Organization:
Like all animals, both cold-blooded and warm-blooded creatures are multicellular organisms, exhibiting cell-level organization.
3. Heterotrophy:
As heterotrophs, both require obtaining energy from external food sources rather than producing their own through photosynthesis.
4. Motility:
Many cold-blooded and warm-blooded animals possess the ability to move and locomote in environments they inhabit.