Why is the nucleus considered the command center of the cell?
a)it contains the genetic information for every function of the cell.
b)it is the cells power house and processes energy for the cell.
c)it is the organelle present in both prokaryotic and eukaryotic cells.
d) it is responsible for packaging proteins for delivery out of the cells.

The starting materials in a nuclear change have a total mass of 2.3465 x 10-27 kg. after the change, the resulting materials have a mass of 2.3148 x 10-27 kg. how much energy was released during the change? 2.85 x 10-12 2.08 * 10-10 j 0 211 * 10-10 j 8.56 * 10-43

Is a fossil fem that support wegener's hypothesis of continental drift a. gondwanded b. kannemerid c. mesosaurus d. glossopters

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.