The half-life of carbon-14 is 5730 years. A bone is discovered which has 20 percent of the carbon-14 found in the bones of other living animals. How old is the bone?.

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

The grooves or folds of the brain are called