Randall has long attributed his ulcer to his high stress job as a bond trader and is astounded when his doctor tells him his ulcer is likely to be associated with an infection instead. What infectious agent has been associated with gastric and duodenal ulcers as well as gastric cancer?

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

c

explanation:

idk

helicase, i think thats it

what are the options? add them, then i will be glad to .