Answer:
Bactrian camels have two humps rather than the single hump
Explanation:
Viruses need to be inside a living thing (of course the living thing has to have the right temperature which most living things do) . When they're inside a living thing they start injecting the host's cells with its DNA in order to make more copies of itself which allows the virus to spread. So basically viruses need to be inside something living.
Answer:
People drink water that has been contaminated by animal feces
Explanation:
I think the answer would be 52cm:24cm ratio but don't take my word for it
A sex cell that hasn't been fertilized and has left the ovary would come out during the menstrual cycle under normal circumstances.