If you’re talking about too many people I’m guessing the limitation factors would be lack of resources and that would include lack of food and space.
A different form of a gene
Answer:
The answer I think is B it would be same zygotes WW (widows peak)
Explanation:
they could possibly learn the climate the animal was from or even relative dating & absolute age
Answer:
Bacteria like E coli, streptococcus
Viruses like Influenza and HIV
Parasites like malaria