Which of the following is incorrect match?

Eurythermal are the organisms which can tolerate a wide range of temperatures.

Polar bear can only tolerate narrow range of temperatures and thus is stenothermal animal.

Option B, C and D are wrong because

Archaebacteria live in extreme environments because of the specialized nature of their cell wall, they are found in hot sulfur springs, hydrothermal vents.

Cyanobacteria are the true bacteria and are found everywhere.

Desert lizards show behavioral changes to maintain their body temperature

Polar bear is a stenothermal animal, option A is the wrong match.