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प्रश्न
In markets, eggs of birds are available but never eggs of dogs. why?
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उत्तर
Birds are oviparous, i.e., lay eggs outside their body. So, it is easy to collect their eggs and these are thus available in the market.
On the contrary, dogs are viviparous, i.e., do not lay eggs but give birth to young ones. Their eggs are extremely small and remain inside their bodies.
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संबंधित प्रश्न
State whether the following statement is true (T) or false (F):
A fertilised egg becomes a seed.
When pregnancy does not occur, the life of corpus luteum is about ______.
Give the appropriate term for the following:
Process of fusion of ovum and sperm.
Differentiate between:
Semen and sperm
Given below is a portion of the diagram to show the diagrammatic highly magnified view of a single human sperm. Complete the diagram to show its normal structure.
Name the following:
Virgin birth
What are the functions of testes?
Explain the Term Vas deferens.
Write the functional activity of the following structure:
Seminal vesicles
Match the pair:
| 'A' | 'B' | ||
| (1) | Male | (a) | 44 + XX |
| (b) | 44 + XY | ||
| (c) | 44 + YY |
