In this article we will discuss about the asexual and sexual modes of reproduction in animals with the help of suitable diagram. Asexual Reproduction in Animals: Asexual reproduction is that kind of reproduction which has the involvement of only one parent. In this there is neither gamete formation nor fusion of gametes. When the organism reproduces asexually, the offspring formed [...]
The following points highlight the top two modes of reproduction in animals. The modes are: 1. Asexual Reproduction 2. Sexual Reproduction. Mode # 1. Asexual Reproduction: It is most common in lower animals but occurs also in somewhat highly organised forms. Production of a generation of cercaria from a redia in liver fluke, budding in bryozoa and tunicates belong to [...]
The following points highlight the four special modes of reproduction in animals. The special modes are: 1. Parthenogenesis 2. Paedogenesis (Neoteny) 3. Polyembryony 4. Regeneration. Special Mode # 1. Parthenogenesis: Development of an unfertilized egg into an adult is parthenogenesis (Gr. perthenos = virgin + gene = birth). A number of abiotic factors, viz. pH, salinity of the water (in [...]