When bacteria is divided in to two it is called binary fission, but there is also a process called conjugation
Vaccines and shots are typically made of a small controlled portion of the virus or disease to cause immunity to the large scale types.
Answer:
Biotic factors are just everything living (bio-) in an ecosystem. So they're bound to vary in every ecosystem, based on the biome, climate, other food sources available, et cetera.
Do you see flamingoes in the forest? No, you say? Well, they're living; they're biotic factors. They aren't in a forest or a jungle ecosystem because that's not their habitat and they don't thrive there.
you draw a pyramid and split it into different levels to show the flow of energy between different trophic levels