In the classic experiment conducted by Hershey and Chase, why was the pellet radioactive in the centrifuge tube that contained bacteria with viruses?

A. The bacteria were in the pellet, and many contained the radioactive viral DNA.
B. The bacteria were in the pellet, and they had incorporated radioactive proteins into their cell membranes.
C. The radioactive protein coats of the viruses were in the pellet.
D. The radioactive viruses (coats plus DNA) were in the pellet.
E. The radioactive viruses were in the pellet, and the bacteria were in the supernatant.

List two new traits (structural or behavioral) that each new species of rat might demonstrate as it adapts to the conditions on two of the four islands. choose only two islands that are described in the lesson. record the island latter and the major habitat feature of the island. then list two new traits each rat subspecies might demonstrate in order to survive the habitat on that island. note: new traits should be unique to that island and be in response to that island’s habitat feature. i cannot remember islands that were names in the lesson so only answer if you have done the lesson (5.13 life science 7b) choose 2 of the islands and describe a structural and a behavioral trait for a rat on each island so 4 total answers, 2 different structurals and 2 different behaviorals, one for each rat for each island

What is the next step in muscle contraction after the actin changes shape? (apex)

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."