Vegetative reproduction is a part of the vegetative organs of higher plants-roots, stems and leaves, which develop into a new individual after falling off from the mother. For example, the creeping branches of strawberries, the roots of thistles, the leaves of begonia and the stems of potatoes can germinate, and a new individual can be formed from the buds. It is an asexual reproduction mode of higher plants, and it is impossible for lower plant cells to carry out vegetative reproduction. But offspring are lower and less common. Although the offspring can keep the maternal genetic traits well, their variability is small and their viability is poor.

Sexual germ cells (gametes) produced by parents become fertilized eggs through the combination of bisexual germ cells (such as sperm and egg cells), and then the fertilized eggs develop into a new individual reproductive model, which is called sexual reproduction.

Sexual reproduction is a way of reproduction through the combination of germ cells. Generally, the life cycle of an organism includes the alternation of diploid period and parthenogenetic ploidy period. Diploid cells produce haploid cells (male and female gametes or eggs and sperm) through meiosis; Haploid cells form new diploid cells through fertilization (nuclear fusion).

Asexual reproduction refers to the reproductive mode in which new individuals are directly produced by the mother without the combination of hermaphroditic germ cells. It can be divided into fission propagation (bacteria and protozoa) and budding propagation (yeast, hydra, etc.). ), spore propagation (ferns, etc. ) and vegetative propagation (strawberry stolons, etc. ), it can shorten the growth cycle of plants and keep the excellent characteristics of the mother. Including vegetative reproduction! ! !

Schizobacteria is one of the ways of asexual reproduction. Single-celled organisms form two daughters through cell division, such as bacteria (transverse fissure) and euglena (longitudinal fissure), which are the same as the mother. The division and reproduction of group-like organisms means that each cell in the group divides at the same time and further develops into a new group, such as coccidia and euglena, which are the same as the mother.

Bud propagation Bud propagation, also called bud propagation, is one of the ways of asexual propagation. The "bud" in "bud grafting propagation" refers to the bud body growing on the mother body, not the structure of the real bud on higher plants. Parental citizenship

The offspring produced by cell division grow a bud similar to the mother at a certain position, that is, the bud base, which does not leave the mother immediately, but is connected with the mother and continues to receive the nutrition from the mother until the individual can live independently. It is a special way of asexual reproduction, such as coelenterates and sponges. Some creatures will form spherical buds from the side of their bodies under appropriate circumstances. The nutrition of this bud is provided by the mother. When they mature, they will form a new body wall at the junction of the mother, and then leave the mother and become independent new individuals. This phenomenon is called budding reproduction.