Reproduction in animals

• Implantation is when the embryo is attached to the uterus
• Food and oxygen go from the mother to the baby during implantation
• In oviparous organisms, they lay eggs
• Viviparous organisms give birth to live young
• Testis is the male reproductive organ that produces sperm
• Ovary is the female reproductive organ that produces eggs (ova)
• The fusion of the male gamete (sperm) and the female gamete (egg) forms a zygote
• The developing zygote is called an embryo
• Test tube babies grow in the mother's uterus
• In vitro fertilization (IVF) is the process of fertilization outside the body
• In males, the reproductive parts include testis, sperm, ducts, and penis
• In females, the reproductive parts include ovaries, oviducts, and uterus
• Organisms reproduce for the continuation of the species, survival of the species, variation, and individual reproduction
• Reproduction is the process of creating new offspring
• Asexual reproduction involves one parent and produces offspring with less variation
• Sexual reproduction involves two parents where male and female gametes fuse to produce a zygote, resulting in more variation
• Types of sexual reproduction include binary fission (splitting) and budding
• Binary fission:

  • Seen in organisms like Amoeba
  • Involves the division of the nucleus and cytoplasm to form two daughter cells
• Budding:

  • Seen in organisms like Hydra and yeast
  • Involves the formation of an outer growth that detaches from the parent to form a new organism
• Reproduction is important for continuation of species,variation of species and survival of species
• Transformation of an larva into an adult is known as metamorphosis
• Cloning is the production of an exact copy of a cell
• The first clone was dolly