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प्रश्न
Humans are ______.
पर्याय
oviparous
viviparous
ovoviviparous
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उत्तर
Humans are viviparous.
Explanation:
Sexually reproducing organisms like humans that give birth to young ones directly. In this case, the development of the zygote occurs within the body of the organism. Such organisms are called viviparous.
संबंधित प्रश्न
Humans reproduce ______.
What are the major functions of male accessory ducts and glands?
____________ contribute about 60% of the total volume of the semen.
Fill in the blank:
The sac-like structure present outside the body and which contains testes is called _________.
Which one of the following is the correct route that a sperm follows when it leaves the testis of a mammal ?
Given below is a diagram of the lateral section of the testis of a man. Study the same and answer the questions that follow:
(i) Label the parts numbered 1 to 4 of the diagram.
(ii) State the functions of the parts labeled 1 and 3.
(iii)What is the significance of the testes being located in the scrotal sac outside the abdomen?
(vi)What is the role played by the inguinal canal?
(v) What is semen?
Name the Following
The tubular knot fitting like a cap on the upper surface of the testes.
Find an odd one out.
Identify the condition in wtrich the testis fails to descend from abdomen into scrotum, leading to sterility.
Identify the location of Leydig cells.
Sertoli cells are regulated by the pituitary hormone known as ______.
Seminal plasma, the fluid part of semen is formed by ______.
How do sperms develop?
What are the components of semen?
Identify A, B, C, D, in the given diagram of the human reproductive system:
Explain the function of the following structure in the human male reproductive system.
Scrotum
Give reason: Testes are located outside the body cavity in scrotal sacs.
State very briefly the chief function of the following:
Seminal vesicles
State very briefly the chief function of the following:
Sperm duct (vas deferens)
Name these:
3 male accessory glands in humans.
