The buildup of lactate in the muscles causes a burning sensation. It is a common idea that the buildup of lactate also causes soreness in the muscles for a few days afterward. Scientists now think this is not true. Describe how a scientist could test this hypothesis with an experiment. Describe the type of data that would be collected, and how the experiment could prove or disprove the hypothesis.

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

In the water cycle , when does water undergo a chemical change

Describe the function of the endomembrane system? what organelles are involved?