I think atleast one is Oxygen because it needs air to digest
B
Because virus do contain genetic material and duh they make people sick and yes they are made of more than one cell
Answer:
(B) Similarities among Hox genes suggest that they all arose from a single ancestral gene that duplicated many times.
Explanation:
Hox genes are arranged in clusters and their order on the chromosome is the same as the order in which they are expressed along the body during development.
I hope I helped, and I always appreciate Brainliest!!! :)
