What do all relative position words mean

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

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.