Asexual and Sexual Reproduction in Animals

• For animals, sexual reproduction starts with the production of haploid sex cells through meiosis
•  The fertilized egg will undergo series of mitosis turning into a zygote
• In lower form of animals like invertebrates, sexual reproduction happens through self-fertilization, in which an animal's sperm fertilizes its own eggs
• Hermaphroditism is a different form of sexual reproduction. Like most organisms who can reproduce asexually, hermaphrodites also involve only one parent to be able to reproduce
• Fragmentation is a process that forms new organism from a fragment of the parent individual
• Parthenogenesis happens when the unfertilized egg cell can still form the new individual even without the presence of a sperm cell
• Sexual reproduction in animals always involves the use of haploid sex cells from both parents
• Asexual reproduction in animals always produces offspring that are highly identical to the parent