B is correct. Krypton is a noble gas which has a full outer shell of 8 electrons and is generally unreactive because of it.
They protect bacterial cells from white blood cells.
Count the ones expressing the trait in the F2 gen. Divide by how many animals there are in F2. Times by 100.
Answer:Prokaryotes are organisms whose cells do not contain a distinct nucleus, bounded by a nuclear envelope, in contrast to eukaryotic organisms that do have distinct nuclei. Prokaryotes include both the bacteria and the archaea, which appear to be only distantly related to bacteria.
Explanation:
