A collector has a sample of a cloth that they think was from a mummy in Ancient Egypt. After inspection it is estimated that the cloth would have had about 0.0000013 grams of Carbon14 when it was new. Today there was found to be 0.0000009 grams remaining. Approximately how old is the cloth?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3