g the cells in a certain tissue which indirectly helps the organism. Fission is not the only form of asexual reproduction, there are many others. Budding is one method of asexual reproduction in which a group of self-supporting cells sprout from, than detach from the parent organism. Unlike most other spores, eggs, etc. buds are usually multi-cellular and contain more than one cell layer. Hydras and sea squirts are some organisms that reproduce by budding. (Encarta, 1). Vegetative reproduction is much like budding, in that the certain parts of a plant eventually root and sprout (Example: tubers of potatoes). Parthenogenesis is a form of asexual reproduction in which new individual organisms are formed from unfertilized eggs. This normally occurs in some insects, amphibians, reptiles, and birds. Sporulation is another way some organisms asexually reproduce. A spore is a specially modified cell, similar to a small seed. Spores are usually produced by the division of cells within a structure called a sporophagnum. (Harold, 42).Regeneration is a specialized form of reproduction. By regeneration some organisms have the ability to replace an injured or lost appendage. Many plants can grow another entire individual from a small part of itself, such as a root, stem, leaf, or even something as small as a piece of an organ. Using this knowledge, in 1958 F.C. Steward founded the science of horticulture. Regeneration can only be a form of reproduction if it is full reproduction, meaning that that organism can produce another organism with a single body part. No vertebrates are capable of this, although it can be done synthetically by cloning. Asexual reproduction is often a second means of multiplying in organisms that ordinarily reproduce sexually. Sometimes that is the only way for that organism to reproduce. Asexual reproduction demands less energy and time then would sexual reproduction and is better suited to a harsh environment. This is why b...