2. escribe the function of the esophagus? A. Absorbed the food in its wall. B. It tears and grinds the food into pieces C. Collect undigested food and form feces D. Narrow tube that allows the food to push down to the stomach 3 How is the stomach work together in the digestive system?

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Acontrol during an experiment. might change remains constant does not exist does change

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6