Use the data you've recorded from the previous activity to arrange the rock layers from oldest to youngest on the geologic time scale. Determine the identity of the unknown fossil by using the Fossils chart.

Why does the skin of your finger shrink when you wash clothes for a long time?

Does mitochondria still meet the definition of a eukaryote why or why not?

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.