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Its Chondrichthyans and it depends on the species. Mostly they are ectothermic but a small number of exceptions exist. Some sharks, like the thresher shark, can warm parts of its body some what, this means a few C above water temperature not like how warm blooded animals regulate temperature.
So in short.Ectothermic.
What else can I help you with?
Is a trout a jawless fish?
No, trout are not jawless fish. They belong to the class Osteichthyes, which includes jawed fish with bony skeletons. Jawless fish belong to the class Agnatha, which includes animals like lampreys and hagfish.
Is freeezing endothermic or exothermic?
Freezing is exothermic, as the substance that is freezing loses energy to its surroundings.
Is a maned wolf endothermic or ectothermic?
Yes. A wolf is endothermic, able to maintain its own body temperature. It is a mammal, and mammals and birds are endothermic. The term 'endothermic' is the biological term for an animal that is warm-blooded.
Does agnatha have ectoderm or endoderm?
Agnatha, which includes jawless fish like lampreys and hagfish, have all three germ layers: ectoderm, mesoderm, and endoderm. They exhibit the typical triploblastic organization found in most animals.
Are penguin exothermic or endothermic?
A duck is endothermic, able to maintain its own body temperature. It is a bird, and mammals and birds are endothermic. The term 'endothermic' is the biological term for an animal that is warm-blooded.
Is the African red worm endothermic or ecothermic?
ecothermic
Is a jellyfish ectothermic or endothermic?
Ecothermic because jellyfish aren't warm blooded
How do class agnatha breathe?
with gills; they're fish!
What are three main groups of fishes?
Class Agnatha
How do endothermic and ecothermic reactions differ?
Endothermic reactions absorb heat from the surroundings, causing a decrease in temperature, while exothermic reactions release heat into the surroundings, causing a temperature increase. Endothermic reactions require energy input to proceed, while exothermic reactions release energy during the reaction.
What are the five verebrates groups each called?
Fish, amphibians, reptiles, birds and mammals. Fish are ecothermic, aquatic vertebrates. Amphibians and reptiles are ectothermic vertebrates. Birds and mammals are endothermic vertebrates.
Are Lampreys and hagfishes are examples of what kind of fishes members of the class Agnatha?
jawless fishes
What order is jawless fish in?
Jawless fish are the oldest group of fish, belonging to the class Agnatha. Within this class, they are further divided into two orders: the Petromyzontiformes (lampreys) and the Myxiniformes (hagfish).
Do fish have keratin?
Fishes of class AGNATHA (myxini) have tooth-like structures that are composed of KERATIN..
Are Agnatha warm or cold blooded?
Agnatha, which includes jawless fish such as lampreys and hagfish, are generally considered to be cold-blooded (ectothermic). This means their body temperature is largely determined by the surrounding environment. They do not have the physiological mechanisms to regulate their body temperature internally like warm-blooded (endothermic) animals do.
Why are fish from the class Agnatha considered primitive?
Agnatha means 'no jaws', and they really don't have jaws, although they do have teeth. They also have no stomach, and no boney skeleton. Their skeleton is cartilagineous, like the elasmobranchs.
Are all animals endothermic?
Not all animals are endothermic (actually). The reptilian family is not endothermic and can survive without the warm-blood. Mostly, mammals are endothermic and not usually the reptile class.
