A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed at 2 years. Which is the independent and which is dependent.

Suppose a scientist measures the amount of dna per cell of a particular diploid species at various stages of meiosis. she finds that the meiotic cells contain 3.7 pg , 7.3 pg , or 14.6 pg of dna. match each stage of the cell cycle to the corresponding amount of dna contained within a cell at that stage.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

How does human environment effect the biosphere