Answer is cjust took test
Answer:
B. Sedimentary basins
Explanation:
Petroleum can only accumulate in a petroleum source with organic matter, which sedimentary basins can provide.
Answer: It’s A I think
Explanation:
I have no idea. Its Not D, im pretty sure. And I dont think it’s B. So it’s either A or C, and I think it’s A.
Animal phyla are primarily defined according to B. Patterns of embryologic development and adult body plans.
If a cell is grown in a medium containing radioactively labeled thymidine--which is one of the nucleotides needed to synthesize DNA--after the first round of replication, all of the DNA molecules will have one labeled strand and one unlabeled strand. Why? Because the radioactively labeled thymidine will be incorporated into the newly synthesized strands. If the cell undergoes ANOTHER round of replication in the same medium, the same sequence of events will occur.