The more classification levels that two organisms share,
a.
the closer together on earth they live.
b.
the easier it is to tell them apart.
c.
the more characteristics they have in common.
d.
the more distantly related they are.

The correct answer is c. the more characteristics they have in common.

There a multiple levels of classifications of the living organisms, and they can be a very nice indicator as to how closely or distantly two or more organisms are related. The more classification levels the organisms share, the closer they are related to each other, and the less classification levels they share, the more distantly they are related to each other. If the organism are more closely related, than it means that they share more common characteristics as well.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle

at right angles to each other