TO WHOEVER CAN HELP Organisms are classified into kingdoms primarily on the basis of
A)behavior
B)structure
C)size
D)habitat

B Structure :)

Explanation:

Structure, I got the answer from quizlet, so it's probably right.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes