40 points Which of the following is a division in the geologic time scale? Mark all that apply.
(a) eons
(b) eras
(c) periods
(d) epochs

Use the drop-down menu to complete the statement. an electron in the first energy level of the electron cloud has an electron in the third energy level.a. a lower energy thanb. a higher energy thanc. the same energy as

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

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."