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प्रश्न
Give Reasons
At the time of birth, the testes descend into the scrotal sacs.
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उत्तर
In human beings (mammals) the temperature required for the production and survival of sperms is lower than that of the body temperature. Hence, to provide a suitable temperature of about 2 – 3°C lower than that of body temperature, the testes descend into the scrotal sec at the time of birth.
संबंधित प्रश्न
What changes are seen in boys at the time of puberty?
In human females, an event that indicates the onset of reproductive phase is :
(a) growth of body
(b) change in hair pattern
(c) change in voice
(d) menstruation
Describe in brief the role of vas deferens in human male reproductive system.
In humans, sperm production occurs in the organ ______.
“Gender of child is determined by the male partner of couple”. Draw a diagram explaining the above statement.
The vagina is a muscular tube.
Choose the correct answer:
Binary fission is a method of __________
What are the signs of puberty in human males and females?
Differentiate on the basis of what is indicated in brackets :
The prostate gland and Cowper’s gland (the nature of secretion)
Choose the Odd One Out:
