Question

Which statement best explains why electrical signals in the body are often based on ions?

A.) Ions contain a single atom.

B.) Ions can gain electrons.

C.) Ionic bonds are very strong.

D.) Ions are charged particles.

Answer 1

D.) Ions are charged particles.

Answer 2

Hello!

Ions are charged particles, that explains why they have either a positive or negative charge. Since electrical signals contain charges, that also explains why they are often based on ions. Your answer would be D!

You can feel free to let me know if you have any questions regarding this!
Thanks!

- TetraFish