The protective substance that lines the stomach is called 1. Saliva
2. Mucous Membrane
3. Pepsin
4. Trypsin

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart

In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him