Please help. What is the purpose of cell division? A. Growth of new cells
B. Replacement of older, worn out cells
C. Used for reproduction
D. All of the above​

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources? (site 1)

What is the difference between bacterial infections and viral infections?

Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.