Yes organelles work together to maintain homeostasis by each performing different jobs that keep the cell alive.
Water goes downhill and the earth isn't Very spherical so it'll have ways for the water to go down and up to distribute the water around the world.
Answer: Radon
Explanation: Radium is a decay product of Uranium. As Radium is still highly radioactive it further decays into Radon.
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The columns on the periodic table are called groups or families. The elements in the same group have similar properties. One of these particles is electrons.
A:110 B:40 C:10 but good job on B