− | Reptiles are ectothermic vertebrates that regulate body temperature by behavioural and physiological processes. Optimum functioning of metabolic processes, including digestion, growth, healing, reproduction and immune system. | + | Reptiles are ectothermic vertebrates that regulate [[Body temperature|body temperature]] by behavioural and physiological processes. Optimum functioning of metabolic processes, including digestion, growth, healing, reproduction and immune system are reliant on temperature. |