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Give two differences between a zygote, a...

Give two differences between a zygote, an embryo and a foetus .

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LAKHMIR SINGH & MANJIT KAUR-REPRODUCTION IN ANIMALS-EXERCISE
  1. Why do female frogs ( or female fish ) lay hundreds of eggs ?

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  2. What is meant by an 'embryo' ? Can we identify the body features in an...

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  3. Give two differences between a zygote, an embryo and a foetus .

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  4. Describe the various steps involved in the sexual reproduction in anim...

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  5. Draw a labeled diagram of male reproductive system.

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  6. Define foetus. After how many weeks of development, a human embryo is ...

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  7. What is metamorphosis ? Give two example of metamorphosis.

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  8. What is difference between viviparous animals and oviparous animals ?

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  9. Which of the following are oviparous animals and which are viviparous ...

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  10. Give five example each of animals which develop: a) inside the mothe...

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  11. Give five example each of animals which develop: b) Inside eggs whic...

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  12. Explain how, chicks are born. How much time does the embryo present in...

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  13. In which of the following animals the embryos develop fully inside the...

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  14. What are gametes ?

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  15. In which sort of reproduction are gametes involved ?

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  16. What is formed when two gametes fuse ?

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  17. What is this act of fusion called ?

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  18. Match the terms given in column A with those given in column B :

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  19. Differentiate between internal fertilisation and external fertilisatio...

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  20. What is meant by 'cloning' ? State whether gametes are involved in clo...

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