What is an ionic bond? an attractive bond between two similarly charged atoms

an attractive bond between two oppositely charged atoms

a bond due to shared valence electrons between 2 or more atoms

a bond due to shared valence electrons between two or more atoms.

Thank you.

BY GERALD GREAT.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

it is either c or d and i know for sure it is not a or b