Answer:
alleles are different versions of a gene
Answer,
Kingdom, Phylum, Class, Order, Family, Genus and Species
Step By Step Explanation:
The second one im pretty sure
Answer:
The Answer is "C" hope this helped
Explanation:
I think the reservoir ( a human,animal or non living such as soil where the infectious agent normally lives)
secondly the mode of transmission,there are some modes of transmission that allow the pathogen to enter quickly and some that make the process slow.
and also crowding and the presence of co-infections.
i hope this helps
