Explain the experiment conducted by Hershey and Chase. How did the results of their experiment demonstrate that DNA was the genetic material of bacteriophages

In what for do plants utilize nitrogen? why do they need nitrogen?

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

Has magnification ability of hundreds of thousands of times