Cnidarians do not have a circulatory system. Different parts of the body receive nutrients not via a stream of blood but through diffusion from seawater into their tissues. They are neither cold, nor warm-blooded - they have no blood.
Arthropods are called cold-blooded as they largely depend on their environment for heat; such as basking in the sun, etc. As such they are called partially ectothermic. "Partial" because some employ mechanisms which generate heat; such as flying insects like moths and bees which vibrate their wings prior to takeoff to heat one of their body segments. Some flying insects also employ convective, evaporative and possibly heat-exchange thermal regulation methods.
Tarantulas are coldblooded, like any other arthropod.
Yes, they are cold blooded.
Cold blooded, only mammals and birds are warm blooded
Cold blooded.
are catfish cold blooded or warm blooded
Cold Blooded
badgers are cold blooded
They are mammals so they are warm-blooded.
No, they are warm blooded.
Rodents are warm-blooded. Not cold-blooded!
warm blooded
they are cold blooded because all worms are cold blooded