They're chordates , have a notochord and spine, and thus are endoskeletal.
no
1 year.
ectotherm
An ectotherm
ectotherm
It's an ectotherm
Jellyfish have no blood.
ectotherm.....
An ectotherm, meaning it relies on external temperatures.
A snake is a vertebrate and is an ectotherm (cold-blooded) like most reptiles.
I think it's ectothermic but I'm not 100% about 95%.