Answer:
C
Explanation:
This is because viruses are bigger than bacteria, so it is not A. Bacteria and viruses both cause disease so it is not B. And viruses have genetic material, not bacteria so it is not D. Also viruses are considered nonliving because they don't meet all the characteristics of life, so it is C.
Atmosphere? I am not really sure what you are asking.
alleles of different genes tend to be connected together when does genes are on the same chromosome the Offspring received one recessive allele from each parents
Hope it helps