Use a rubber bulb syringe to suction mucus first from the baby's nose, then from his mouth

________ Muscles are composed of specialized cells called muscle fibers

Indicate whether the statement is true or false

What precaution is required when light fixtures and ventilation ducts penetrate a membrane ceiling that provides insulation for steel structural components?

A. An alternative, fire-rated structural material is required. B. Steel components being protected may require insulations. C. Special provisions such as increased insulation or fire dampers may nbe required. D. Membrane ceilings that are penetrated cannot be used to protect steel components.