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Questions and Answers
What is formed as a result of the fusion of the sperm and ovum during fertilisation?
What is formed as a result of the fusion of the sperm and ovum during fertilisation?
Which type of fertilisation occurs within the female body?
Which type of fertilisation occurs within the female body?
Which of the following characteristics is inherited by individuals from their parents?
Which of the following characteristics is inherited by individuals from their parents?
What is notable about the fertilisation process in frogs compared to hens?
What is notable about the fertilisation process in frogs compared to hens?
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Which animal is NOT mentioned as having internal fertilisation?
Which animal is NOT mentioned as having internal fertilisation?
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What is the primary purpose of in vitro fertilisation (IVF)?
What is the primary purpose of in vitro fertilisation (IVF)?
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Why are babies born through IVF commonly referred to as test-tube babies?
Why are babies born through IVF commonly referred to as test-tube babies?
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In which type of organisms is external fertilisation most commonly found?
In which type of organisms is external fertilisation most commonly found?
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What happens to the zygote after fertilisation occurs in IVF?
What happens to the zygote after fertilisation occurs in IVF?
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Why do fish and frogs lay numerous eggs compared to hens, which typically lay only one egg at a time?
Why do fish and frogs lay numerous eggs compared to hens, which typically lay only one egg at a time?
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Study Notes
Reproduction in Animals
- Reproduction is essential for the continuation of species
- Reproduction in animals ensures the continuation of similar kinds of individuals
- Two modes of animal reproduction: sexual and asexual
- Sexual reproduction involves the fusion of male and female gametes (ova and sperm)
- Sexual reproduction begins with fertilization leading to zygote formation
- Internal fertilization: occurs inside the female body
- External fertilization: occurs outside the female body
- Viviparous animals: give birth to live young
- Oviparous animals: lay eggs
- Some animals undergo metamorphosis: a change in form from larva to adult
Male Reproductive Organs
- Includes testes, sperm ducts, and penis
- Testes produce millions of sperms (male gametes)
- Each sperm has a head, mid-piece, and tail
Female Reproductive Organs
- Includes ovaries, oviducts (fallopian tubes), and uterus
- Ovaries produce ova (female gametes)
- Uterus is where the developing embryo grows
Fertilisation
- Fusion of sperm and ovum to form a zygote
- Zygote develops into an embryo
- Internal fertilization occurs inside the female body
- External fertilization occurs outside the female body
Development of Embryo
- Zygote divides repeatedly to form a ball of cells
- These cells develop into different tissues and organs
- The embryo gets embedded in the wall of the uterus
- Embryo develops into a foetus
- Foetus develops into a baby
Viviparous and Oviparous Animals
- Viviparous animals give birth to live young ones
- Oviparous animals lay eggs
Asexual Reproduction
- Involves one parent
- Types include budding (hydra) and binary fission (amoeba)
- Budding: new individuals develop as outgrowths from a parent
- Binary fission: parent divides into two new individuals
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Description
This quiz covers the fundamental concepts of reproduction in animals, including sexual and asexual methods, as well as the anatomy of male and female reproductive organs. Test your knowledge on fertilization, gametes, and the life cycles of various species.
