Which of the following structures are accessory structures of the digestive system?
mouth and stomach
esophagus and rectum
pancreas and liver
pharynx and gall bladder

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Why do lunar and solar eclipse not happen every month

•what conclusions can you make about the relationship between the volume of a gas and its temperature? • what conclusions can you make about the relationship between the volume of a gas and its pressure? • what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?