Osteichthyes are primitively ectothermic ( cold blooded ), meaning that their body temperature is dependent on that of the water.
22.
Muscles of some ectothermic species . e . g ., sharks, show less thermal dependence at lower temperatures than endothermic species
23.
Since coloration affects the absorption of radiant energy, color variation induced by temperature may serve as a form of ectothermic adaption.
24.
Amphibians are ectothermic ( cold-blooded ) vertebrates that do not maintain their body temperature through internal buccopharyngeal region through the nostrils.
25.
The phenomenon is important in the biology of ectothermic megafauna, such as large turtles, and aquatic reptiles like ichthyosaurs and mosasaurs.
26.
More generally, ectothermic vertebrates have been studied to determine how blood acid-base balance and pH change as body temperature changes.
27.
Chuckwallas are diurnal animals, and as they are ectothermic, spend much of their mornings and winter days basking in the sun.
28.
"Ectothermic, or coldblooded, reptiles can produce bursts of high power for locomotion, although their endurance is limited, " he said.
29.
Swordfish are ectothermic animals; however, along with some species of sharks, they have special organs next to their eyes to heat their eyes and brains.
30.
However, Michigan's species live where it is often cold, necessitating adaptions to freezing weather due to their ectothermic ( cold-blooded ) nature.
