1. Binary Fission: This is a simple form of reproduction used by single-celled organisms like bacteria and some protists. The parent cell duplicates its genetic material (DNA) and then splits into two identical daughter cells.

2. Budding: In this process, a new individual develops as an outgrowth or bud from the parent organism. The bud eventually detaches and grows into a separate individual. This is common in yeasts, hydras, and some corals.

3. Fragmentation: Some organisms can reproduce by breaking into fragments, each of which can develop into a new individual. This occurs in organisms like flatworms, sea stars, and some plants. For example, a sea star can regrow a whole body from just one of its arms.