Answer: we can see the nucleus obviosly in the eukaryotic cell
Answer:
Killer T Cells (Cytotoxic T cells)
Explanation:
Cytotoxic T Cells are the immune cells that directly mediate the apoptosis of kidney cells.
The two are potassium and rubidium. Why? Na is an alkali metal. As you go down the metals become more reactive.
Calcium has 20 protons. Why? The atomic # is 20 (the one at the top).
It has 20 neutrons. Why? The atomic mass (the number on the bottom) is ~40, ignoring electron mass. 40- 20 protons = 20 neutrons.
It has 20 electrons.
Why? The # of protons and electrons is the same. Ions aren't on the periodic table.
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