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प्रश्न
The eggs of frogs do not have shells for protection, yet they are safe in water, how?
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उत्तर
Frog’s eggs are without any external covering or shell but a layer of jelly hold the eggs together, thus providing them protection.
This jelly or gelatinous covering also protects them from drying up and prevents them from being eaten up by other animals or predators.
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संबंधित प्रश्न
When pregnancy does not occur, the life of corpus luteum is about ______.
Differentiate between the following pair:
Efferent duct and sperm duct
Name the following:
Organ where fertilization occurs.
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
How many days does the foetus take to be fully developed?
What is fertilization? Name the site of fertilization in the human females.
Give Reasons
The urethra is also called urinogenital duct.
State whether the following statement is True or False. If false, correct the statement:
External fertilisation can occur both in water and on land.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
What is the duration of capacitation in the female genital tract?
What is the term used to describe the fusion product of male and female pronuclei?
