Which of the following is a contributing reason behind emerging disease?

a. the lack of evolution in hostsb. the overuse of antibioticsc. the absence of migration or travel in organismsd. the lack of evolution in pathogens

Chimeras are interesting organisms that have two different sets of dna. chimeras occur when when two different zygotes fuse to form one organism. some chimeras have no outward symptoms, while some have two different eye colors it two different blood types what roles do mitosis and meiosis play in the process