The two modes of reproduction are favored under different conditions.
Bacteria are well-known for their rapid multiplication through asexual reproduction, primarily by a process called binary fission. In this process, a single bacterial cell divides into two identical daughter cells, effectively doubling the population in a short period. Under optimal conditions, some bacteria can divide every 20 minutes, leading to exponential growth. This rapid reproduction allows bacteria to quickly adapt to environmental changes and exploit available resources.