Which activity can occur without the use of
energy?
(1) contraction of muscle tissue
(2) protein synthesis in a cell
(3) active transport of minerals
(4) movement of water across a membrane

4 because osmosis does not require energy

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

Idont really understand