Why is an electromagnet special? -It's stronger than a regular magnet.
-It can be turned on or off.
-It attracts more types of metals.

Wht happens as electrons in the electron transport chain release their energy

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?