Which most likely has the greatest conductivity? a warm plastic rod a cool rubber tube a cool lead metal strip a warm copper wire

A warm copper wire. This is because of the material and the temperature: metal, in general, is a good conductor, and copper is better than lead. Also, electricity conducts better in warm environments than it does in cold environments - cooling wires will slow conductivity.

There are four nitrogenous bases that make up dna. the two pyramidines are thymine and cytosine. the two purines are adenine and guanine. these bases pair in a very specific way. adenine - thymineguanine - cytosine i remember it like this: a tall, good cat.

Sorry i was trying to figure out the answer to your question. but can't sorry