Which would most likely cause the liquid in tube a to rise

When the intestine becomes infected with the food borne illness bacteria e. coli, the bacteria releases a enterotoxin that causes excessive loss of water and electrolytes in the intestines. necessary to return the osmolality of the intestines to normal?

The body is protected against harmful flu viruses by

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom