Tunafish are, not sure about any other species
ectotherm
An ectotherm
ectotherm
It's an ectotherm
Any animal whose body temperature is regulated by it's environment (reptile, some fish, etc.)
Some examples of ectotherm animals are reptiles (such as snakes and lizards), amphibians (like frogs and salamanders), fish, insects, and some types of mollusks (like snails). These animals rely on external sources of heat to regulate their body temperature.
Jellyfish have no blood.
An ectotherm, meaning it relies on external temperatures.
ectotherm.....
The peacock bass is an ectotherm, meaning its body temperature is primarily regulated by the surrounding environment rather than internally. This fish relies on external heat sources to maintain its body temperature, which influences its metabolic processes and activity levels. Ectothermy is common among fish species, allowing them to thrive in various aquatic habitats.
A Mudskipper is a FISH not a reptile or amphibian, it belongs to the gobi family witch is the largest family of fish .
A snake is a vertebrate and is an ectotherm (cold-blooded) like most reptiles.