Early classification systems consisted of two kingdoms; plantae and animalistic. what scienctific development allowed taxonomists to establish the monera and protista kingdoms?

What was the land like over 500 million years ago? what was under the sea?

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?