En la clase de aritmética, necesita y a. una carpeta, una goma c. una calculadora, un lápiz b. un disquete, una pluma d. un bolígrafo, una papelería

your answer is b hope that

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.