Question

sexual reproduction in animals
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Answer 1

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★ The Asexual reproduction in animals occurs through fission, budding, fragmentation, and parthenogenesis. ... Sexual reproduction starts with the combination of a sperm and an egg in a process called fertilization. This can occur either outside the bodies or inside the female.

Answer 2

• Sexual reproduction is the formation of new individual by the involvement of two parents.
• Sexual reproduction is divided into 3 stages pre-fertilization,fertilization and post-fertilization

• In animals the male gamete is said to be sperm and a female gamete is called as egg or ovum.
• The fusion of two gametes lead to formation of a single celled zygote.
• The zygote further divides to form an embryo.
• The embryo further develops .This process of embryo development is called embryogenesis.