Animal reproduction
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This document discusses animal reproduction. It describes the male and female reproductive systems of cows, including testes, ovaries, sperm and eggs. It explains the processes of internal and external fertilization, where fertilization occurs inside or outside the body. It provides examples of animals that exhibit each type of fertilization. The document also briefly discusses asexual reproduction through budding in hydra and flatworms. It notes selective breeding and artificial breeding as methods used by humans to influence animal offspring traits.
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Animal reproduction
- 2. Vocabulary • Budding • External fertilization • Internal fertilization • Ovary • testis
- 5. • Testes- are a pair of male reproductive system and lie in the scrotum behind the penis. • Scrotum- behind the penis • Penis- an organ where the urine excretion takes place.
- 6. • Sperms- are called male gametes; travel out through the penis.
- 7. Female cow reproductive system
- 8. • Ovaries- are a pair of female reproductive system; located at each side of the lower abdomen. • Ova – are female gametes produced by the ovaries.
- 9. • Fertilization- the fusion of male and female gametes. ( sperm and egg) • The fertilized egg will develop into a young animal.
- 10. • Internal fertilization- it occurs in the body.
- 11. Examples of animals that carry out internal fertilization are: rhinoceroses, dogs, birds, crocodiles, insects and elephants
- 14. • External fertilization-occurs outside the body of a female.
- 17. • It occurs in some animals such as: –Starfish –Hydra –Flatworm
- 18. Hydra reproduces by producing buds. The process is known as budding.
- 19. flatworm
- 20. starfish
- 22. • Selective breeding- it allows the adult animals to reproduce better quality offspring in the next generation.
- 24. Artificial breeding- this method allows collected sperm cell inseminated to a female animal artificially.
- 26. A young "hebra," an offspring from a female zebra and a male horse, roams with her mother inside Manila Zoo in Manila, Philippines, Aug. 19, 2010.
- 27. Hercules is the most famous Liger in the World.
- 28. • Embryo transfer- emrbyos are collected and transferred to a female recipients.