Pls will give brainlest! will give and you in question 3 unsaved how is an electromagnet different from a bar magnet? question 3 options: an electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core. a bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core. only a bar magnet has a magnetic field. only an electromagnet attracts materials made of iron.

An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.

I am pretty sure its A

The cells would have too much or too little of that substance.
the affect a defective carrier molecule would have on a person's cell is that the cell could have too much or too little water. defects in folate metabolism, such as defective carrier molecules, could be implicated in the etiology of neural tube defects (ntds).
cysteinuria (cysteine in the urine) is such a disease involving defective cysteine carrier proteins in the kidney cell membranes.