(ᵔᴥᵔ) plz me: the meltdown at the nuclear power plant in chernobyl released radioactive particles and energy that can damage cells. this damage to cells can be prevented by all but which of these? a) wood b) lead c) thick concrete d) potassium iodide,

Lead and thick concrete can both protect cells from damage by blocking the radiation from reaching the cell. Potassium Iodide is a chemical that specifically protects the thyroid from radioactive iodine by flooding the thyroid cells with stable iodine. Therefore, the only option in this list that does not prevent cellular damage from radiation is A) wood.

They are all in a iving organism.

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask