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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
State whether the following statement is true (T) or false (F):
The plumule of an embryo gives rise to the root system.
Name the following:
The accessory gland in human males whose secretion activates the sperms
Give appropriate term of the following:
The attachment of developing zygote (blastocyst) on the uterine wall.
Name the following:
Organ producing sperms.
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
Mention two functions of the parts labelled '2' other than its endocrine functions.
The figure given below represents the female reproductive system of a mammal.
What will happen if the part B on both sides gets blocked?
What is fertilization? Name the site of fertilization in the human females.
Give Reasons
The urethra is also called urinogenital duct.
Give Technical Term:
Rupture of the follicle and release of the ovum from the ovary.
How many hours are required for the process of capacitation?
