How would I say : Open your mouth so I can see.

Do not open your mouth as the X-ray is being took.

Don’t bite down hard.

You need to rest for a day.

I need to know how to say these lines in Spanish.

el orden del párrafo seria el siguiente:

micaela esta de vacaciones en buenos aires, tiene una cita para ir en canoa al lago. ella pasea hasta el jardin de los poetasy termina su dia con una caminata por el jardin botánico.

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.