The branch of physics dealing with objects in motion and energy exchanges that occur as these objects collide is called what?

Helicobacter pylori is a ________ that causes approximately 90% of duodenal ulcers and 80% of gastric ulcers

a. virus b. fungus c. bacterium d. mutation

An 80-year-old woman has pain in the right upper quadrant of her abdomen and a yellow tinge to her skin. You should suspect dysfunction of the:

A) liver. B) spleen. C) pancreas. D) gallbladder.