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Explain how could a single cell becomes ...

Explain how could a single cell becomes such a big individual. Justify your answer.

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The single cell formed after the fusion of sperm and egg is called a zygote. It is the first cell of an individual which undergoes cell division to give rise to a complete individual. Therefore, a single cell becomes an individual by cell division.
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PEARSON IIT JEE FOUNDATION-REPRODUCTION IN ANIMALS -CLASSROOM CORNER (Short Answer Type Questions)
  1. Explain how could a single cell becomes such a big individual. Justify...

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  2. Explain how zygote is the beginning of a new individual. Comment.

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  3. Why do fish and frogs lay hundreds of eggs for reproduction while hen ...

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  4. Explain how zygote is formed in the female body. Comment.

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  5. Is a zygote a baby? Justify your answer.

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  6. Which cell organelles are found in human sperm cell? Give reason.

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  7. Explain why do only male gametes have a tail?

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  8. Is a sperm cell alive? Comment.

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  9. Explain how did you develop from a single cell into an adult? Give rea...

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  10. Define the following term. Ovulation

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  11. Define the following term. Incubation

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  12. Define the following term. Metamorphosis

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  13. Define the following term. Oviparous animals

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  14. Define the following term. In vitro fertilization

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  15. Explain the importance of umbilical cord in the reproduction of human ...

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  16. Why do animals reproducing through external fertilization generate gam...

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  17. Explain how a frog undergoes metamorphosis during its life cycle? Give...

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  18. In humans, the first stage of reproduction starts before the egg even ...

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  19. Would you call a tadpole an amphibian or an aquatic animal? Give a rea...

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  20. Define the following term: Embryo

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