B - Because an active cell can only work if it has a 3-Dimension structure.
Answer: Most rocks do not contain organic material-most fossils are not organic anymore. One of the most common isotopes used in radiometric dating is uranium-235 or U-235. ... This makes it useful for dating rocks that are very old. Radioactive isotopes with short half-lives cannot be used for dating old rocks.
not 100% sure :/
Answer:
it could be more susceptible to disease or it could be D
The Chesapeake bay watershed
