(03.01 LC) What process uses rock layers and index fossils to determine an object's estimated age?

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

Complete the following statements about the functions of the digestive system. carbohydrates and fats are digested in secretes enzymes that aid in the digestion of carbohydrates, fats, and proteins. the secretes bile; bile is stored in undigested food is processed into feces in feces is then stored in until it is eliminated from the body via

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called