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प्रश्न
Humans reproduce ______.
विकल्प
asexually
sexually
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उत्तर
Humans reproduce sexually.
Explanation:
Humans are sexually reproducing and viviparous. The reproductive events in humans include the formation of gametes (gametogenesis), i.e., sperm in males and ovum in females; the transfer of sperm into the female genital tract (insemination); and the fusion of male and female gametes (fertilisation), leading to the formation of a zygote.
APPEARS IN
संबंधित प्रश्न
Identify True/False statement. Correct false statement to make it true.
Leydig cells synthesise androgens.
State the reason why testes lie outside the abdomen in a scrotum?
Multiple choice question. Tick (✓) the correct choice:
Testis are present in a sac called
- scrotum
- oviduct
- epididymis
- none of the above
Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up to the urethral opening in the human male.
Write important function of the following:
Inguinal canal
Given below is the schematic diagram of the sectional view of the human male reproductive system.
State the functions of the parts numbered 1, 2, 3, 5, 8 and 11.
Explain the Term Penis.
Identify the primary sex organs in males.
How much semen is generally present in seminal fluid?
Identify the labels (a, b, c, and d) in the given diagram of the male reproductive system.
Semen is secreted by ______.
Urinogenital duct is the ____________.
______ highly coiled seminiferous tubules are present in each testicular lobule.
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is ______.
Secretions from which one of the following are rich in fructose, calcium, and some enzymes?
Semen is a constituent of seminal plasma with ______.
ells of Leydig occur in ______.
Give two reasons for the appearance of variations among the progeny formed by sexual reproduction.
Give reasons for the following
Scrotum remains outside the body of human males.
Accessory glands of male reproductive system are
Explain the function of the following structure in the human male reproductive system.
Scrotum
Mention the location and the function of Leydig cells.
In humans, sperm production occurs in the organ ______.
State very briefly the chief function of the following:
Cowper's gland
Name the following:
Three accessory glands of human male reproductive system.
What is the whitish, viscous fluid secreted by glands along with spermatozoa called?
What is the primary role of the testes?
Each testis is divided into approximately how many compartments called testicular lobules?
The prostate gland is a single gland located at which position?
