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Deposition of calcareous shell around zy...

Deposition of calcareous shell around zygote occurs in

A

birds and reptiles

B

birds and mammals

C

mammals and reptiles

D

all of these.

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The correct Answer is:
a
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NCERT FINGERTIPS-REPRODUCTION IN ORGANISM-Reproduction In Organism
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  2. Which of the following statements is not correct regarding oviparous a...

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  3. Deposition of calcareous shell around zygote occurs in

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  4. Read the following statements and select the correct option. Stateme...

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  5. Select the option which shows viviparous animals only.

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  6. Which of the following animals give birth to young ones ?

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  7. Viviparity is found in

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  8. In these animals, the female retain the eggs inside its body after fer...

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  9. In which of the following plants, sepals do not fall off after fertill...

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  10. Which of the labelled parts in the transverse section of tomato fruit,...

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  11. Refer to the transverse section of ovary of mustard plant identify X a...

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  12. The wall of the ovary forms

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  13. Grafting is the union between two plants of closely related varieties....

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  14. Given figures illustrate.

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  15. A dandelion produces seeds without meiosis or fertillisation. The adu...

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  16. The given diagram depicts fertilisation and development of which of th...

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  17. In these figures, two life-cycles are described. Mark the correct opti...

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  18. A few statements describing certain features of reproduction are given...

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  19. The term 'clone' cannot be applied to offspring formed by sexual repro...

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  20. Asexual method of reproduction by binary fission is common to which of...

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