Dr. lorraine also explains to mr. volpe that h. pylori impairs the normal buffering effect in his duodenum. what does she mean by the “buffering effect? ” how does the duodenum accomplish this, and in what way does this protect the duodenum

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Speed is the ratio of the distance of an object moves to